Researchers from the National University of Singapore (NUS) have developed a 3D printed, self-powered mechanoluminescent (ML) photonic skin designed for communication and safety monitoring in underwater environments. The stretchable device emits light in response to mechanical deformation, requires no external power source, and remains functional under conditions such as high salinity and extreme temperatures. The findings were published in Advanced Materials by Xiaolu Sun, Shaohua Ling, Zhihang Qin, Jinrun Zhou, Quangang Shi, Zhuangjian Liu, and Yu Jun Tan. The research was conducted at NUS and Singapore’s Agency for Science, Technology and Research (A*STAR). Schematic of the 3D printed mechanoluminescent photonic skin showing fabrication steps and light emission under deformation. Image via Sun et al., Advanced Materials. 3D printing stretchable light-emitting skins with auxetic geometry The photonic skin was produced using a 3D printing method called direct-ink-writing (DIW), which involves extruding a specially formulated ink through a fine nozzle to build up complex structures layer by layer. In this case, the ink was made by mixing tiny particles of zinc sulfide doped with copper (ZnS:Cu), a material that glows when stretched, with a flexible silicone rubber. These particles serve as the active ingredient that lights up when the material is deformed, while the silicone acts as a soft, stretchable support structure. To make the device more adaptable to movement and curved surfaces, like human skin or underwater equipment, the researchers printed it using auxetic designs. Auxetic structures have a rare mechanical property known as a negative Poisson’s ratio. Unlike most materials, which become thinner when stretched, auxetic designs expand laterally under tension. This makes them ideal for conforming to curved or irregular surfaces, such as joints, flexible robots, or underwater gear, without wrinkling or detaching. Encapsulating the printed skin in a clear silicone layer further improves performance by distributing mechanical stress evenly. This prevents localized tearing and ensures that the light emission remains bright and uniform, even after 10,000 cycles of stretching and relaxing. In previous stretchable light-emitting devices, uneven stress often led to dimming, flickering, or early material failure. Mechanical and optical performance of encapsulated photonic skin across 10,000 stretch cycles. Image via Sun et al., Advanced Materials. Underwater signaling, robotics, and gas leak detection The team demonstrated multiple applications for the photonic skin. When integrated into wearable gloves, the skin enabled light-based Morse code communication through simple finger gestures. Bending one or more fingers activated the mechanoluminescence, emitting visible flashes that corresponded to messages such as “UP,” “OK,” or “SOS.” The system remained fully functional when submerged in cold water (~7°C), simulating deep-sea conditions. In a separate test, the skin was applied to a gas tank mock-up to monitor for leaks. A pinhole defect was covered with the printed skin and sealed using stretchable tape. When pressurized air escaped through the leak, the localized mechanical force caused a bright cyan glow at the exact leak site, offering a passive, electronics-free alternative to conventional gas sensors. To test performance on soft and mobile platforms, the researchers also mounted the photonic skin onto a robotic fish. As the robot swam through water tanks at different temperatures (24°C, 50°C, and 7°C), the skin continued to light up reliably, demonstrating its resilience and utility for marine robotics. Comparison of printed photonic skin structures with different geometries and their conformability to complex surfaces. Image via Sun et al., Advanced Materials. Toward electronics-free underwater communication While LEDs and optical fibers are widely used in underwater lighting systems, their dependence on rigid form factors and external power makes them unsuitable for dynamic, flexible applications. In contrast, the stretchable ML photonic skin developed by NUS researchers provides a self-powered, adaptable alternative for diver signaling, robotic inspection, and leak detection, potentially transforming the toolkit for underwater communication and safety systems. Future directions include enhanced sensory integration and robotic applications, as the team continues exploring robust photonic systems for extreme environments. Photonic skin integrated into gloves for Morse code signaling and applied to robotic fish and gas tanks for underwater safety monitoring. Image via Sun et al., Advanced Materials. The rise of 3D printed multifunctional materials The development of the photonic skin reflects a broader trend in additive manufacturing toward multifunctional materials, structures that serve more than a structural role. Researchers are increasingly using multimaterial 3D printing to embed sensing, actuation, and signaling functions directly into devices. For example, recent work by SUSTech and City University of Hong Kong on thick-panel origami structures showed how multimaterial printing can enable large, foldable systems with high strength and motion control. These and other advances, including conductive FDM processes and Lithoz’s multimaterial ceramic tools, mark a shift toward printing entire systems. The NUS photonic skin fits squarely within this movement, combining mechanical adaptability, environmental durability, and real-time optical output into a single printable form. Read the full article in Advanced Materials Subscribe to the 3D Printing Industry newsletter to keep up with the latest 3D printing news. You can also follow us onLinkedIn and subscribe to the 3D Printing Industry YouTube channel to access more exclusive content. At 3DPI, our mission is to deliver high-quality journalism, technical insight, and industry intelligence to professionals across the AM ecosystem.Help us shape the future of 3D printing industry news with our2025 reader survey. Featured image shows a schematic of the 3D printed mechanoluminescent photonic skin showing fabrication steps and light emission under deformation. Image via Sun et al., Advanced Materials.

IBM and Roche are teaming up on an AI solution to a challenge faced by millions worldwide: the relentless daily grind of diabetes management. Their new brainchild, the Accu-Chek SmartGuide Predict app, provides AI-powered glucose forecasting capabilities to users. The app doesn’t just track where your glucose levels are—it tells you where they’re heading. Imagine having a weather forecast, but for your blood sugar. That’s essentially what IBM and Roche are creating.AI-powered diabetes managementThe app works alongside Roche’s continuous glucose monitoring sensor, crunching the numbers in real-time to offer predictive insights that can help users stay ahead of potentially dangerous blood sugar swings.What caught my eye were the three standout features that address very specific worries diabetics face. The “Glucose Predict” function visualises where your glucose might be heading over the next two hours—giving you that crucial window to make adjustments before things go south.For those who live with the anxiety of hypoglycaemia (when blood sugar plummets to dangerous levels), the “Low Glucose Predict” feature acts like an early warning system, flagging potential lows up to half an hour before they might occur. That’s enough time to take corrective action.Perhaps most reassuring is the “Night Low Predict” feature, which estimates your risk of overnight hypoglycaemia—often the most frightening prospect for diabetes patients. Before tucking in for the night, the AI-powered diabetes management app gives you a heads-up about whether you might need that bedtime snack. This feature should bring peace of mind to countless households.“By harnessing the power of AI-enabled predictive technology, Roche’s Accu-Chek SmartGuide Predict App can help empower people with diabetes to take proactive measures to manage their disease,” says Moritz Hartmann, Head of Roche Information Solutions.How AI is speeding up diabetes researchIt’s not just patients benefiting from this partnership. The companies have developed a rather clever research tool using IBM’s watsonx AI platform that’s transforming how clinical study data gets analysed.Anyone who’s been involved in clinical research knows the mind-numbing tedium of manual data analysis. IBM and Roche’s tool does the heavy lifting—digitising, translating, and categorising all that anonymised clinical data, then connecting the dots between glucose monitoring data and participants’ daily activities.The result? Researchers can spot meaningful patterns and correlations in a fraction of the time it would normally take. This behind-the-scenes innovation might do more to advance diabetes care and management in the long run than the app itself.What makes this collaboration particularly interesting is how it brings together two different worlds. You’ve got IBM’s computing prowess and AI know-how pairing up with Roche’s decades of healthcare and diabetes expertise.”Our long-standing partnership with IBM underscores the potential of cross-industry innovation in addressing unmet healthcare needs and bringing significant advancements to patients faster,” says Hartmann.“Using cutting-edge technology such as AI and machine learning helps us to accelerate time to market and to improve therapy outcomes at the same time.”Christian Keller, General Manager of IBM Switzerland, added: “The collaboration with Roche underlines the potential of AI when it’s implemented with a clear goal—assisting patients in managing their diabetes.“With our technology and consulting expertise we can offer a trusted, customised, and secure technical environment that is essential to enable innovation in healthcare.”What this means for the future of healthcare techHaving covered healthcare tech for years, I’ve seen plenty of promising innovations fizzle out. However, this IBM-Roche partnership feels promising—perhaps because it’s addressing such a specific, well-defined problem with a thoughtful, targeted application of AI.For the estimated 590 million people (or 1 in 9 of the adult population) worldwide living with diabetes, the shift from reactive to predictive management could be gamechanging. It’s not about replacing human judgment, but enhancing it with timely, actionable insights.The app’s currently only available in Switzerland, which seems a sensible approach—test, refine, and perfect before wider deployment. Healthcare professionals will be keeping tabs on this Swiss rollout to see if it delivers on its promise.If successful, this collaboration could serve as a blueprint for how tech giants and pharma companies might work together on other chronic conditions. Imagine similar predictive approaches for heart disease, asthma, or Parkinson’s.For now, though, the focus is squarely on using AI to improve diabetes management and helping people sleep a little easier at night—quite literally, in the case of that clever nocturnal prediction feature. And honestly, that’s a worthwhile enough goal on its own.(Photo by Alexander Grey)Want to learn more about AI and big data from industry leaders? Check out AI & Big Data Expo taking place in Amsterdam, California, and London. The comprehensive event is co-located with other leading events including Intelligent Automation Conference, BlockX, Digital Transformation Week, and Cyber Security & Cloud Expo.Explore other upcoming enterprise technology events and webinars powered by TechForge here.

ExpressVPN is good at its job. It's easy to be skeptical of any service with a knack for self-promotion, but don't let ExpressVPN's hype distract you from the fact that it keeps its front-page promise of "just working." Outside of solid security, the two best things ExpressVPN offers are fast speeds and a simple interface. Our tests showed only a 7% average drop in download speed and a 2% loss of upload speed, worldwide. And while the lack of extra features may frustrate experienced users, it makes for a true set-and-forget VPN on any platform. This isn't to say ExpressVPN is without flaws — it's nearly bereft of customization options and it's notably more expensive than its competition — but it beats most VPNs in a head-to-head matchup. For this review, we followed our rigorous 10-step VPN testing process, exploring ExpressVPN's security, privacy, speed, interfaces and more. Whether you read straight through or skip to the sections that are most important for you, you should come away with all the information you need to decide whether to subscribe. Editors' note: We're in the process of rebooting all of our VPN reviews from scratch. Once we do a fresh pass on the top services, we'll be updating each review with a rating and additional comparative information. Table of contents Findings at a glance Installing, configuring and using ExpressVPN ExpressVPN speed test: Very fast averages ExpressVPN security test: Checking for leaks How much does ExpressVPN cost? ExpressVPN side apps and bundles Close-reading ExpressVPN's privacy policy Can ExpressVPN change your virtual location? Investigating ExpressVPN's server network Extra features of ExpressVPN ExpressVPN customer support options ExpressVPN background check: From founding to Kape Technologies Final verdict Findings at a glance Category Notes Installation and UI All interfaces are clean and minimalist, with no glitches and not enough depth to get lost in Windows and Mac clients are similar in both setup and general user experience Android and iOS are likewise almost identical, but Android has a nice-looking dark mode Speed Retains a worldwide average of 93% of starting download speeds Upload speeds average 98% of starting speeds Latency rises with distance, but global average stayed under 300 ms in tests Security OpenVPN, IKEv2 and Lightway VPN protocols all use secure ciphers Packet-sniffing test showed working encryption We detected no IP leaks Blocks IPv6 and WebRTC by default to prevent leaks Pricing Base price: $12.95 per month or $99.95 per year Lowest prepaid rate: $4.99 per month Can save money by paying for 28 months in advance, but only once per account 30-day money-back guarantee Bundles ExpressVPN Keys password manager and ID alerts included on all plans Dedicated IP addresses come at an extra price ID theft insurance, data removal and credit scanning available to new one-year and two-year subscribers for free 1GB eSIM deal included through holiday.com Privacy policy No storage of connection logs or device logs permitted The only risky exceptions are personal account data (which doesn't leave the ExpressVPN website) and marketing data (which the policy says should be anonymized) An independent audit found that ExpressVPN's RAM-only server infrastructure makes it impossible to keep logs Virtual location change Successfully unblocked five international Netflix libraries, succeeding on 14 out of 15 attempts Server network 164 server locations in 105 countries 38% of servers are virtual, though most virtual locations are accessed through physical servers within 1,000 miles A large number of locations in South America, Africa and central Asia Features Simple but effective kill switch Can block ads, trackers, adult sites and/or malware sites but blocklists can't be customized Split tunneling is convenient but unavailable on iOS and modern Macs Aircove is the best VPN router, albeit expensive Customer support Setup and troubleshooting guides are organized and useful, with lots of screenshots and videos Live chat starts with a bot but you can get to a person within a couple minutes Email tickets are only accessible from the mobile apps or after live chat has failed Background check Founded in 2009; based in the British Virgin Islands Has never been caught selling or mishandling user data Turkish police seized servers in 2017 but couldn't find any logs of user activity Owned by Kape Technologies, which also owns CyberGhost and Private Internet Access A previous CIO formerly worked on surveillance in the United Arab Emirates; no evidence of shady behavior during his time at ExpressVPN Windows Version 12 leaked some DNS requests when Split Tunneling was active Installing, configuring and using ExpressVPN This section focuses on how it feels to use ExpressVPN on each of the major platforms where it's available. The first step for any setup process is to make an account on expressvpn.com and buy a subscription. Windows Once subscribed, download the Windows VPN from either expressvpn.com or the Microsoft Store, then open the .exe file. Click "Yes" to let it make changes, wait for the install, then let your computer reboot. Including the reboot, the whole process takes 5-10 minutes, most of it idle. To finish, you'll need your activation code, which you can find by going to expressvpn.com and clicking "Setup" in the top-right corner. You can install ExpressVPN's Windows app from the Microsoft store, but we found the website more convenient. Sam Chapman for Engadget Extreme simplicity is the watchword for all ExpressVPN's designs. The Windows client's launch panel consists of three buttons and less than ten words. You can change your location or let the app pick a location for you — the "Smart Location" is the server with the best combination of being nearby and unburdened. Everything else is crammed into the hamburger menu at the top left. Here, in seven tabs, you'll find the Network Lock kill switch, the four types of content blockers, the split tunneling menu and the option to change your VPN protocol. You can also add shortcuts to various websites, useful if you regularly use your VPN for the same online destinations. To sum up, there's almost nothing here to get in the way: no delays, no snags, no nested menus to get lost in. It may be the world's most ignorable VPN client. That's not a bad thing at all. Mac ExpressVPN's app for macOS is almost identical in design to its Windows app. The process for downloading and setting it up is nearly the same too. As on Windows, it can be downloaded from the App Store or sideloaded directly from the expressvpn.com download center. Only a few features are missing and a couple others have been added. Split tunneling is gone (unless you're still on a macOS lower than 11), and you won't see the Lightway Turbo setting. ExpressVPN recommends some servers, but it's easy to search the whole list. Sam Chapman for Engadget Mac users do gain access to the IKEv2 protocol, along with the option to turn off automatic IPv6 blocking — Windows users have to leave it blocked at all times. Almost every website is still accessible via IPv4, but it's useful if you do need to access a specific IPv6 address while the VPN is active. Android Android users can download ExpressVPN through the Google Play Store. Open the app, sign in and you're ready to go. The Android app has a very nice dark-colored design, only slightly marred by an unnecessary information box about how long you've used the VPN this week. ExpressVPN's Android app puts a little more information on the screen than it needs to, but still runs well. Sam Chapman for Engadget There's a large button for connecting. Clicking on the server name takes you to a list of locations. On this list, you can either search or scroll and can choose individual locations within a country that has more than one. We connected to as many far-flung server locations as we could, but not a single one took longer than a few seconds. The options menu is organized sensibly, with no option located more than two clicks deep. You will see a couple of options here that aren't available on desktop, the best of which is the ability to automatically connect to your last-used ExpressVPN server whenever your phone connects to a non-trusted wifi network. There are also a few general security tools: an IP address checker, DNS and WebRTC leak testers and a password generator. These are also available on the website, but here, they're built into the app. With the exception of the latter, we'd recommend using third-party testing tools instead — even a VPN with integrity has an incentive to make its own app look like it's working. iPhone and iPad You can only install ExpressVPN's iOS app through the app store. During setup, you may need to enter your password to allow your phone to use VPN configurations. Otherwise, there are no major differences from the Android process. ExpressVPN looks good on iPhone and iPad. Sam Chapman for Engadget The interface is not quite as pleasing as the dark-mode Android app, but it makes up for that by cutting out some of the clutter. The tabs and features are similar, though split tunneling and shortcuts are absent. Also, both mobile apps make customer support a lot more accessible than their desktop counterparts — plus, mobile is the only way to send email support tickets. Browser extension ExpressVPN also includes browser extensions for Firefox and Chrome. These let you connect, disconnect and change server locations without leaving your browser window. It's nice, but not essential unless you have a very specific web browser flow you like. ExpressVPN speed test: Very fast averages Connecting to a VPN almost always decreases your speed, but the best VPNs mitigate the drop as much as possible. We used Ookla's speed testing app to see how much of your internet speed ExpressVPN preserves. For this test, we emphasized the locations ExpressVPN uses for most of its virtual servers, including the Netherlands, Brazil, Germany and Singapore. Some terms before we start: Latency, measured in milliseconds (ms), is the time it takes one data packet to travel between your device and a web server through the VPN. Latency increases with distance. It's most important for real-time tasks like video chatting and online gaming. Download speed, measured in megabits per second (Mbps), is the amount of information that can download onto your device at one time — such as when loading a web page or streaming a video. Upload speed, also measured in Mbps, is the amount of information your device can send to the web at once. It's most important for torrenting, since the amount of data you can seed determines how fast you can download in exchange. The table below shows our results. We conducted this on Windows, using the automatic protocol setting with the Lightway Turbo feature active — a recent ExpressVPN addition that keeps speed more consistent by processing connections in parallel. Server location Latency (ms) Increase factor Download speed (Mbps) Percentage dropoff Upload speed (Mbps) Percentage dropoff Portland, Oregon, USA (unprotected) 18 -- 58.77 -- 5.70 -- Seattle, Washington, USA (best server) 26 1.4x 54.86 6.7% 5.52 3.2% New York, NY, USA 156 8.7x 57.25 2.6% 5.57 2.3% Amsterdam, Netherlands 306 17x 53.83 8.4% 5.58 2.1% São Paulo, Brazil 371 20.6x 53.82 8.4% 5.65 0.9% Frankfurt, Germany 404 22.4x 55.71 5.2% 5.67 0.5% Singapore, Singapore 381 21.2x 52.76 10.2% 5.64 1.0% Average 274 15.2x 54.71 6.9% 5.61 1.6% These are extremely good results. ExpressVPN is a winner on both download and upload speed. No matter where we went in the world, we never lost more than about 7% of our download speeds, and upload lost an astoundingly low average of 2%. This suggests that ExpressVPN deftly distributes its user load between servers to eliminate bottlenecks. This Ookla speedtest shows you can still get fast internet while connected to ExpressVPN -- our unprotected speeds are around 58 Mbps. Sam Chapman for Engadget The latency numbers look worse, but the rise in the table is less sharp than we projected. Ping length depends far more on distance than download speed does, so we expect it to shoot up on servers more than 1,000 miles from our location. Keeping the average below 300 ms, as ExpressVPN does here, is a strong showing. ExpressVPN security test: Checking for leaks A VPN's core mission is to hide your IP address and make you untraceable online. Our task in this section is to figure out if ExpressVPN can carry out this mission every time you connect. While we can't be 100% certain, the tests we'll run through below have led us to believe that ExpressVPN is currently leak-proof. Available VPN protocols A VPN protocol is like a common language that a VPN server can use to mediate between your devices and the web servers you visit. If a VPN uses outdated or insecure protocols, or relies on unique protocols with no visible specs or source code, that's a bad sign. Not all protocols are available on all apps, but Mac has the full range. Sam Chapman for Engadget ExpressVPN gives you a selection of three protocols: IKEv2, OpenVPN and Lightway. The first two are solid choices that support the latest encryption algorithms. OpenVPN has been fully open-source for years and is the best choice if privacy is your goal. While IKEv2 started life as a closed project by Microsoft and Cisco, ExpressVPN uses an open-source reverse-engineering, which is both better for privacy and quite fast. Lightway is the odd one out, a protocol you'll only find on ExpressVPN, though its source code is available on Github. It's similar to WireGuard, in that both reach for faster speeds and lower processing demands by keeping their codebases slim. However, Lightway was recently rewritten in Rust to better protect the keys stored in its memory. Ultimately, you can't go wrong with any of ExpressVPN's protocol options. 99% of the time, your best choice will be to set the controls to Automatic and let the VPN decide which runs best. Testing for leaks ExpressVPN is one of the best services, but it's not leak-proof (as you can read in the Background Check below). Luckily, checking for DNS leaks is a simple matter of checking your IP address before and after connecting to a VPN server. If the new address matches the VPN server, you're good; if not, your VPN is leaking. First, we checked the Windows app with split tunneling active to ensure the flaw really had been patched. We tested several servers and didn't find any leaks, which suggests the patch worked, though leaks were rare even before ExpressVPN fixed the vulnerability. We checked our IP while connected to the virtual India location, which is run from a physical server in Singapore. Don't worry -- it still looks like India to streaming services. Sam Chapman for Engadget In fact, we didn't find any leaks on any ExpressVPN server we tested on any platform. Though questions remain about iOS, as you'll see later in this section, that's a problem on Apple's end that even the best VPNs can do very little about for now. The most common cause of VPN leaks is the use of public DNS servers to connect users to websites, which can mistakenly send browsing activity outside the VPN's encrypted tunnel. ExpressVPN avoids the risks of the public system by installing its own DNS resolvers on every server. This is the key factor behind its clean bill of health in our leak testing. Two other common flaws can lead to VPN leaks: WebRTC traffic and IPv6. The former is a communication protocol used in live streaming and the latter is a new IP standard designed to expand domain availability. Both are nice, but currently optional, so ExpressVPN automatically blocks both to ensure there's no opportunity for leaks to arise. One note about VPN security on iOS: it's a known and continuing problem that iOS VPNs do not prevent many online apps from communicating with Apple directly, outside the VPN tunnel. This risks leaking sensitive data, even with Lockdown Mode active in iOS 16. A blog post by Proton VPN shares a workaround: connect to a VPN server, then turn Airplane Mode on and off again to end all connections that were active before you connected to the VPN. Testing encryption We finished up our battery of security tests by checking out ExpressVPN's encryption directly. Using WireShark, a free packet sniffer, we inspected what it looks like when ExpressVPN transmits data from one of its servers to the internet. The screenshot below shows a data stream encrypted with Lightway UDP. After connecting to ExpressVPN, HTTP packets were rendered unreadable while in transit. Sam Chapman for Engadget That lack of any identifiable information, or even readable information, means encryption is working as intended. We repeated the test several times, always getting the same result. This left us satisfied that ExpressVPN's core features are working as intended. How much does ExpressVPN cost? ExpressVPN subscriptions cost $12.95 per month. Long-term subscriptions can bring the monthly cost down, but the great deals they offer tend to only last for the first billing period. A 12-month subscription costs $99.95 and includes three months for free with your first payment, costing a total of $6.67 per month. The bonus disappears for all subsequent years, raising the monthly cost to $8.33. You can also sign up for 28 months at a cost of $139.72, but this is also once-only — ExpressVPN can only be renewed at the $99.95 per year level. There are two ways to test ExpressVPN for free before making a financial commitment. Users on iOS and Android can download the ExpressVPN app without entering any payment details and use it free for seven days. On any platform, there's a 30-day money-back guarantee, which ExpressVPN has historically honored with no questions asked. You will have to pay before you can use it, though. In our opinion, ExpressVPN's service is solid enough that it's worth paying extra. Perhaps not this much extra, but that depends on what you get out of it. We recommend using the 30-day refund period and seeing how well ExpressVPN works for you. If it's a VPN you can enjoy using, that runs fast and unblocks everything you need, that's worth a server's weight in gold. ExpressVPN side apps and bundles ExpressVPN includes some special features that work mostly or wholly separate from its VPN apps. Some of these come free with a subscription, while others add an extra cost. Every subscription includes the ExpressVPN keys password manager. This is available under its own tab on the Android and iOS apps. On desktop, you'll need to download a separate extension from your browser's store, then sign in using your account activation code. It's available on all Chromium browsers, but not Firefox. Starting in 2025, new subscribers get an eSIM plan through holiday.com, a separate service linked to ExpressVPN. The baseline 1GB holiday eSIM plans last for 5 days and can apply to countries, regions, or the entire world (though it's not clear whether the package deal applies to the regional and global plans). Longer-term plans include larger eSIM plans. You can add a dedicated IP address to your ExpressVPN subscription for an additional cost per month. A dedicated IP lets you use the same IP address every time you connect to ExpressVPN. You can add the address to whitelists on restricted networks, and you're assured to never be blocked because of someone else's bad activity on a shared IP. Unlike many of its competitors, ExpressVPN doesn't currently offer antivirus or online storage services, but there is a comprehensive bundle of ID protection tools called Identity Defender. We haven't reviewed any of these products in detail, but here's a list for reference: ID Alerts will inform you if any of your sensitive information is leaked or misused online. It's free with all plans, but you'll have to enter your personal information on your ExpressVPN account page or a mobile app. ID Theft Insurance grants up to $1 million in identity theft reimbursement and comes free with new ExpressVPN one-year or two-year subscriptions. It's not yet available to those who subscribed before it launched in October 2024. Data Removal scans for your information in data brokerages and automatically requests that it be deleted. It's also free with one-year and two-year plans. Credit Scanner is only available for United States users. It monitors your activity on the three credit bureaus so you can quickly spot any suspicious transactions. The Identity Defender features are currently only available to new ExpressVPN customers in the US. Close-reading ExpressVPN's privacy policy Although we worry that the consolidation of VPN brands under the umbrella of Kape Technologies (ExpressVPN's parent company) will make the industry less competitive, we don't believe it's influencing ExpressVPN to take advantage of its users' privacy. To confirm, and get a full sense of what sort of privacy ExpressVPN promises its users, we set out to read ExpressVPN's privacy policy in detail. It's long, but thankfully aimed at casual users instead of lawyers. You can see it for yourself here. In the introduction, ExpressVPN states that it does not keep either activity logs (such as a user's browsing history while connected to the VPN) or connection logs (such as the duration of a user's session and their IP address, which can be used to extrapolate browsing activity). It then specifies the seven types of data it's legally allowed to collect: Data used to sign up for an account, such as names, emails and payment methods. VPN usage data which is aggregated and can't be traced to any individual. Credentials stored in the ExpressVPN Keys password manager. Diagnostic data such as crash reports, which are only shared upon user request. IP addresses authorized for MediaStreamer, which is only for streaming devices that don't otherwise support VPN apps. Marketing data collected directly from the app — a "limited amount" that's kept anonymous. Data voluntarily submitted for identity theft protection apps. Of those seven exceptions, the only ones that count as red flags are account data and marketing data. Both categories are highly personal and could be damaging if mishandled. Fortunately, complying with subpoenas is not one of the allowed uses listed for either data category, nor does the policy let ExpressVPN sell the data to other private parties. The only really annoying thing here is that if you ask ExpressVPN to delete your personal data, you won't be able to use your account from then on. You aren't even eligible for a refund in this case, unless you're within 30 days of your initial subscription. As for marketing data, ExpressVPN collects device fingerprints and location data when you sign up for an account on its website. The privacy policy also claims this is anonymized, as its "systems are engineered to decouple such data from personally identifiable information." Audits corroborate this, as we'll see in the next section. So, while it would be better if ExpressVPN didn't collect any personal data at all, its practices don't appear to pose a risk to anything you do while using the VPN — just the ExpressVPN website. Privacy audits VPN providers often get third-party accounting firms to audit their privacy policies. The idea is that a well-known firm won't mortgage its reputation to lie on behalf of a VPN, so their results can be trusted. For the last several years, ExpressVPN has had KPMG look over its privacy policy and relevant infrastructure (see "TrustedServer" below). KPMG's most recent report, completed in December 2023 and released in May 2024, found that ExpressVPN had enough internal controls in place that users could trust its privacy policy. The report is freely available to read. This is a very good sign, though we're looking out for a more up-to-date audit soon. TrustedServer "TrustedServer" is a marketing term ExpressVPN uses for its RAM-only server infrastructure. RAM-only servers have no hard drives for long-term storage and return to a standard disk image with every reboot. This makes it theoretically impossible to store user activity logs on them, even if ExpressVPN wanted to do that. The KPMG audit, linked above, reports that TrustedServer works as advertised. Between its many clean privacy audits and the Turkish server incident in 2017, we're prepared to say ExpressVPN is a private VPN, in spite of its aggravating exception for marketing. Can ExpressVPN change your virtual location? Next, we tested whether ExpressVPN can actually convince websites that you're somewhere other than your real location. Our security tests have already proven it can hide your IP address, but it takes more than leak-proofing to fool streaming sites these days — Netflix and the others have gotten very good at combing through metadata to sniff out proxy users. The process for testing this is a lot like how we handled the DNS leak tests: try several different servers and see if we get caught. We checked five sample locations outside the U.S. to see if we a) got into Netflix and b) saw different titles in the library. The results are below. Server Location Unblocked Netflix? Library changed? Canada Y Y United Kingdom Y (second try; Docklands failed) Y Slovakia Y Y India Y Y (different from UK library) Australia Y Y In fifteen tests, ExpressVPN slipped up only once. Docklands, the UK server it chose as the fastest, wasn't able to access Netflix. We switched to a server labeled simply "London" and unblocked it without issue. ExpressVPN can change your virtual location so you can explore the wonderful world of K-drama. Sam Chapman for Engadget All the other locations got us access to an alternate Netflix library on the first try. We even checked whether the India server, which is physically located in the UK, showed us different videos than the UK servers. It did, which makes us even more confident that ExpressVPN's virtual locations are airtight. Investigating ExpressVPN's server network ExpressVPN users can connect to a total of 164 server locations in 105 countries and territories. These locations are reasonably well distributed across the globe, but as with all VPNs, there's a bias toward the northern hemisphere. There are 24 locations in the U.S. alone and a further 66 in Europe. That isn't to say users in the Global South get nothing. ExpressVPN has IP addresses from nine nations in South America (Argentina, Brazil, Bolivia, Chile, Colombia, Ecuador, Peru, Uruguay and Venezuela) and six in Africa (Algeria, Egypt, Ghana, Kenya, Morocco and South Africa). The network even includes Kazakhstan, Uzbekistan and Mongolia, impressive since central Asia may be the region most often shafted by VPNs. However, many of these servers have virtual locations different from their real ones. For those of you choosing a server based on performance instead of a particular IP address, ExpressVPN's website has a helpful list of which servers are virtual. The bad news is that it's a big chunk of the list. A total of 63 ExpressVPN locations are virtual, or 38% of its entire network. To reduce the sting, ExpressVPN takes care to locate virtual servers as close to their real locations as possible. Its virtual locations in Indonesia and India are physically based in Singapore. This isn't always practical, leading to some awkwardness like operating a Ghana IP address out of Germany. But it helps ExpressVPN perform better in the southern hemisphere. Extra features of ExpressVPN Compared to direct competitors like NordVPN and Surfshark, ExpressVPN doesn't have many special features. It's aimed squarely at the casual market and will probably disappoint power users. Having said that, what they do include works well. In this section, we'll run through ExpressVPN's four substantial features outside its VPN servers themselves. Network Lock kill switch "Network Lock" is the name ExpressVPN gives to its kill switch (though it's called "Network Protection" on mobile). A VPN kill switch is a safety feature that keeps you from broadcasting outside the VPN tunnel. If it ever detects that you aren't connected to a legitimate ExpressVPN server, it cuts off your internet access. You won't be able to get back online until you either reconnect to the VPN or disable Network Lock. ExpressVPN's kill switch is called Network Lock on desktop, and Network Protection on mobile (Android pictured) Sam Chapman for Engadget This is important for everyone, not just users who need to hide sensitive traffic. The recently discovered TunnelVision bug theoretically allows hackers to set up fake public wi-fi networks through which they redirect you to equally fake VPN servers, which then harvest your personal information. It's unlikely, but not impossible, and a kill switch is the best way to prevent it — the switch always triggers unless you're connected to a real server in the VPN's network. Like most of ExpressVPN's features, all you can do with Network Lock is turn it on and off. You can also toggle whether you'll still be able to access local devices while the kill switch is blocking your internet — this is allowed by default. Threat manager, ad blocker and parental controls ExpressVPN groups three tools under the heading of "advanced protection" — Threat Manager, an ad blocker and parental controls. Threat Manager consists of two checkboxes: one that blocks your browser from communicating with activity tracking software and one that blocks a list of websites known to be used for malware. Check any of these boxes to use the pre-set blocklists whenever you're connected to ExpressVPN. Sam Chapman for Engadget You can't customize the lists, so you're limited to what ExpressVPN considers worthy of blocking. They share their sources on the website. While the lists are extensive and open-source, they rely on after-the-fact reporting and can't detect and block unknown threats like a proper antivirus. The adblock and parental control options work the same way: check a box to block everything on the list, uncheck it to allow everything through. In tests, the ad blocker was nearly 100% effective against banner ads, but failed to block any video ads on YouTube or Netflix. The parental control option blocks a list of porn sites. It's an easy option for concerned parents, but only works while ExpressVPN is connected. As such, it's meant to be used in conjunction with device-level parental controls that prevent the child from turning off or uninstalling the VPN client. Split tunneling Sometimes, you'll find it helpful to have your device getting online through two different IP addresses at once — one for your home services and one for a location you're trying to spoof. That's where split tunneling is helpful: it runs some apps through the VPN while leaving others unprotected. This can also improve your speeds, since the VPN needs to encrypt less in total. You can configure split tunneling through either a blocklist or an allowlist. Sam Chapman for Engadget ExpressVPN includes split tunneling on Windows, Android and Mac (though only on versions 10 and below). You can only split by app, not by website, but it's still pretty useful. For example, you can have BitTorrent handling a heavy download in the background while you use your browser for innocuous activities that don't need protecting. ExpressVPN Aircove router By now, it should be clear that we find ExpressVPN to be a highly reliable but often unexceptional VPN service. However, there's one area in which it's a clear industry leader: VPN routers. ExpressVPN Aircove is, to our knowledge, the only router with a built-in commercial VPN that comes with its own dashboard interface. Usually, installing a VPN on your router requires tinkering with the router control panel, which turns off all but the most experienced users — not to mention making it a massive pain to switch to a new server location. Aircove's dashboard, by contrast, will be instantly familiar to anyone who already knows how to use an ExpressVPN client. It even allows different devices in your home to connect to different locations through the router VPN. Aircove's biggest drawback is its price. Currently retailing at $189 (not including an ExpressVPN subscription), it's around three times more expensive than an aftermarket router fitted with free VPN firmware. Some of you might still find the convenience worth the one-time payment. ExpressVPN customer support options ExpressVPN's written help pages are some of the best on the market. Its live chat is more of a mixed bag, and complex questions may cause delays. However, it is at least staffed with human agents who aim to reply accurately, rather than resolve your ticket as quickly as possible. You can directly access both live chat and email from ExpressVPN's mobile apps (on desktop, you'll have to go to the website). Sam Chapman for Engadget We approached ExpressVPN's support features with a simple question: "If I requested that ExpressVPN delete all my personal data, would I be able to get a refund for my unused subscription time?" (Remember from the Privacy Policy section that submitting a full deletion request also cancels your ExpressVPN account.) Our first stop was expressvpn.com/support, the written support center and FAQ page. It's divided into setup guides, troubleshooting, account management and information on each of ExpressVPN's products. The setup guides are excellent, including screenshots and clearly written steps; each one includes a video guide for those who learn better that way. Troubleshooting is just as good — no videos, but the same standards of clarity and usefulness prevail. The section starts with general problems, then delves into specific issues you might face on each operating system. Each article clearly derives from a real customer need. The live support experience To get answers on our refund question, we visited the account management FAQs. This section stated that the refund policy only applies within 30 days of purchase. Pretty clear-cut, but we still wanted an answer on our special case, so we contacted live chat by clicking the button at the bottom-right of every FAQ page. Live chat is in the bottom-right corner of every page of expressvpn.com. Sam Chapman for Engadget Live chat starts with an AI assistant, which is not too hard to get past — just ask it a question it can't answer, then click "Transfer to an Agent." We got online with (what claimed to be) a human in less than a minute. Answering the question took longer and involved an uncomfortable 10-minute silence, but we did get a clear verdict from a real person: refunds are within 30 days only, no matter what. If the live chat agent can't answer your question, you'll be redirected to open an email support ticket. Annoyingly, there's no way to go directly to email support through the website or desktop apps, though mobile users have the option to skip directly there. ExpressVPN background check: From founding to Kape Technologies ExpressVPN launched in 2009, which makes it one of the oldest consumer VPNs in continual operation. In more than 15 years of operation, it's never been caught violating its own privacy policy, though its record isn't free of more minor blemishes. Headquarters in the British Virgin Islands Founders Dan Pomerantz and Peter Burchhardt registered the company in the British Virgin Islands from the start to take advantage of that territory's favorable legal environment for online privacy. The BVIs have no law requiring businesses to retain data on their users, and the process for extraditing data is famously difficult, requiring a direct order from the highest court. In 2021, the BVI implemented the Data Protection Act (DPA) [PDF link], which prevents companies based in the territory from accessing data on their users anywhere in the world. It's a great privacy law in theory, modeled on best-in-class legislation in the EU. However, we couldn't find any evidence that its supervising authority — the Office of the Information Commissioner — has a leader or staff. In other words, while ExpressVPN is not legally required to log any data on its users, there's technically nobody stopping them from doing so. Whether you trust the jurisdiction depends on whether you trust the company itself. Let's see what the other evidence says. Security and privacy incidents Two significant incidents stand out from ExpressVPN's 16-year history. In 2017, when Andrei Karlov, Russia's ambassador to Turkey, was shot to death at an art show. Turkish police suspected someone had used ExpressVPN to mask their identity while they deleted information from social media accounts belonging to the alleged assassin. To investigate, they confiscated an ExpressVPN server to comb for evidence. They didn't find anything. A police seizure is the best possible test of a VPN's approach to privacy. The provider can't prepare beforehand, fake anything, or collude with investigators. The Turkey incident is still one of the best reasons to recommend ExpressVPN, though eight years is a long time for policy to change. The second incident began in March 2024, when a researcher at CNET informed ExpressVPN that its version 12 for Windows occasionally leaked DNS requests when users enabled the split tunneling feature. While these users remained connected to an ExpressVPN server, their browsing activity was often going directly to their ISP, unmasked. The bug only impacted a few users, and to their credit, ExpressVPN sprang into action as soon as they learned about it. The team had it patched by April, as confirmed by the researcher who initially discovered the vulnerability. But while their quick and effective response deserves praise, it's still a mark against them that a journalist noticed the bug before they did. Kape Technologies ownership and management questions In 2021, an Israeli-owned, UK-based firm called Kape Technologies purchased a controlling interest in ExpressVPN. In addition to ExpressVPN, privately held Kape owns CyberGhost, Private Internet Access, and Zenmate (before it merged into CyberGhost). As shown on its website, it also owns Webselenese, publisher of VPN review websites WizCase and vpnMentor, which poses an apparent conflict of interest. When reached for comment, a representative for ExpressVPN said that "ExpressVPN does not directly engage with, nor seek to influence, the content on any Webselenese site," and pointed us to disclosure statements on the websites in question — here's one example. Even so, it's a good reminder not to take VPN reviews at face value without knowing who's behind them (Engadget is owned by Yahoo, which does not own any VPNs). Diving deeper into the background of Kape's ownership will lead you to owner Teddy Sagi. Go back far enough, and you'll see he did prison time in Israel and was mentioned in the Pandora Papers, among other things. More recently, headlines about the billionaire have focused more his businesses in the online gambling and fintech arenas, as well as his real estate ventures. An ExpressVPN representative told us that "Kape's brands continue to operate independently," and our investigation bore that out — we couldn't find any proof that Kape or Sagi have directly attempted to influence ExpressVPN's software or daily operations. Closer to the immediate day-to-day operations of ExpressVPN was the company's employment of Daniel Gericke as CTO from 2019 through 2023. During that time, the US Justice Department announced it had fined Gericke and two others for their previous employment on a surveillance operation called Project Raven, which the United Arab Emirates (UAE) used to spy on its own citizens. The revelation prompted a public response from ExpressVPN defending its decision to hire Gericke, arguing that "[t]he best goalkeepers are the ones trained by the best strikers." ExpressVPN's representative confirmed that the company still stands by that linked statement. Gericke parted ways with ExpressVPN in October 2023, per his LinkedIn profile. While we don't know what we don't know, we can say that ExpressVPN has not notably changed its public-facing security and privacy policies during the time it's been connected to Kape, Sagi, or Gericke. In the end, how much ExpressVPN's history matters to you is a personal choice. If you object to any current or past actions by Kape Technologies or Teddy Sagi, there are other premium VPN options you might prefer. If you need more information to make up your mind, we recommend reading through CNET's 2022 deep dive on ExpressVPN's corporate history. Final verdict ExpressVPN is the VPN we most often recommend to beginners. It takes zero training to use, and consistently gets past filters on streaming sites. It also runs in the background with virtually no impact. If anything is worth the high price of admission, it's the excellent speeds distributed evenly across the worldwide server network. However, for certain specific cases, ExpressVPN may not be the best choice. There's no way to set up your own server locations, like NordVPN offers, and no double VPN connections, like you can build for yourself on Surfshark. Its corporate background is more suspect than the entities backing Proton VPN, and unlike Mullvad, ExpressVPN doesn't work in China — it's so well-known that the government targets its servers specifically. We suggest going with ExpressVPN for general online privacy, for spoofing locations in your home country while traveling, or if you regularly need to unblock sites in other countries. That encompasses 19 of every 20 users, which is fine by us, as ExpressVPN is a great service. It's just more of a reliable old screwdriver than a multi-tool. This article originally appeared on Engadget at https://www.engadget.com/cybersecurity/vpn/expressvpn-review-2025-fast-speeds-and-a-low-learning-curve-160052884.html?src=rss

In April, Paul Graham, the founder of the tech startup accelerator Y Combinator, sent a tweet in response to former YC president and current OpenAI CEO Sam Altman. Altman had just bid a public goodbye to GPT-4 on X, and Graham had a follow-up question.  “If you had [GPT-4’s model weights] etched on a piece of metal in the most compressed form,” Graham wrote, referring to the values that determine the model’s behavior, “how big would the piece of metal have to be? This is a mostly serious question. These models are history, and by default digital data evaporates.”  There is no question that OpenAI pulled off something historic with its release of ChatGPT 3.5 in 2022. It set in motion an AI arms race that has already changed the world in a number of ways and seems poised to have an even greater long-term effect than the short-term disruptions to things like education and employment that we are already beginning to see. How that turns out for humanity is something we are still reckoning with and may be for quite some time. But a pair of recent books both attempt to get their arms around it with accounts of what two leading technology journalists saw at the OpenAI revolution.  In Empire of AI: Dreams and Nightmares in Sam Altman’s OpenAI, Karen Hao tells the story of the company’s rise to power and its far-reaching impact all over the world. Meanwhile, The Optimist: Sam Altman, OpenAI, and the Race to Invent the Future, by the Wall Street Journal’s Keach Hagey, homes in more on Altman’s personal life, from his childhood through the present day, in order to tell the story of OpenAI. Both paint complex pictures and show Altman in particular as a brilliantly effective yet deeply flawed creature of Silicon Valley—someone capable of always getting what he wants, but often by manipulating others.  Hao, who was formerly a reporter with MIT Technology Review, began reporting on OpenAI while at this publication and remains an occasional contributor. One chapter of her book grew directly out of that reporting. And in fact, as Hao says in the acknowledgments of Empire of AI, some of her reporting for MIT Technology Review, a series on AI colonialism, “laid the groundwork for the thesis and, ultimately, the title of this book.” So you can take this as a kind of disclaimer that we are predisposed to look favorably on Hao’s work.  With that said, Empire of AI is a powerful work, bristling not only with great reporting but also with big ideas. This comes across in service to two main themes.  The first is simple: It is the story of ambition overriding ethics. The history of OpenAI as Hao tells it (and as Hagey does too) is very much a tale of a company that was founded on the idealistic desire to create a safety-focused artificial general intelligence but instead became more interested in winning. This is a story we’ve seen many times before in Big Tech. See Theranos, which was going to make diagnostics easier, or Uber, which was founded to break the cartel of “Big Taxi.” But the closest analogue might be Google, which went from “Don’t be evil” to (at least in the eyes of the courts) illegal monopolist. For that matter, consider how Google went from holding off on releasing its language model as a consumer product out of an abundance of caution to rushing a chatbot out the door to catch up with and beat OpenAI. In Silicon Valley, no matter what one’s original intent, it always comes back to winning.   The second theme is more complex and forms the book’s thesis about what Hao calls AI colonialism. The idea is that the large AI companies act like traditional empires, siphoning wealth from the bottom rungs of society in the forms of labor, creative works, raw materials, and the like to fuel their ambition and enrich those at the top of the ladder. “I’ve found only one metaphor that encapsulates the nature of what these AI power players are: empires,” she writes. “During the long era of European colonialism, empires seized and extracted resources that were not their own and exploited the labor of the people they subjugated to mine, cultivate, and refine those resources for the empires’ enrichment.” She goes on to chronicle her own growing disillusionment with the industry. “With increasing clarity,” she writes, “I realized that the very revolution promising to bring a better future was instead, for people on the margins of society, reviving the darkest remnants of the past.”  To document this, Hao steps away from her desk and goes out into the world to see the effects of this empire as it sprawls across the planet. She travels to Colombia to meet with data labelers tasked with teaching AI what various images show, one of whom she describes sprinting back to her apartment for the chance to make a few dollars. She documents how workers in Kenya who performed data-labeling content moderation for OpenAI came away traumatized by seeing so much disturbing material. In Chile she documents how the industry extracts precious resources—water, power, copper, lithium—to build out data centers.  She lands on the ways people are pushing back against the empire of AI across the world. Hao draws lessons from New Zealand, where Maori people are attempting to save their language using a small language model of their own making. Trained on volunteers’ voice recordings and running on just two graphics processing units, or GPUs, rather than the thousands employed by the likes of OpenAI, it’s meant to benefit the community, not exploit it.  Hao writes that she is not against AI. Rather: “What I reject is the dangerous notion that broad benefit from AI can only be derived from—indeed will ever emerge from—a vision of the technology that requires the complete capitulation of our privacy, our agency, and our worth, including the value of our labor and art, toward an ultimately imperial centralization project … [The New Zealand model] shows us another way. It imagines how AI could be exactly the opposite. Models can be small and task-specific, their training data contained and knowable, ridding the incentives for widespread exploitative and psychologically harmful labor practices and the all-consuming extractivism of producing and running massive supercomputers.”  Hagey’s book is more squarely focused on Altman’s ambition, which she traces back to his childhood. Yet interestingly, she also  zeroes in on the OpenAI CEO’s attempt to create an empire. Indeed, “Altman’s departure from YC had not slowed his civilization-building ambitions,” Hagey writes. She goes on to chronicle how Altman, who had previously mulled a run for governor of California, set up experiments with income distribution via Tools for Humanity, the parent company of Worldcoin. She quotes Altman saying of it, “I thought it would be interesting to see … just how far technology could accomplish some of the goals that used to be done by nation-states.”  Overall, The Optimist is the more straightforward business biography of the two. Hagey has packed it full with scoops and insights and behind-the-scenes intrigue. It is immensely readable as a result, especially in the second half, when OpenAI really takes over the story. Hagey also seems to have been given far more access to Altman and his inner circles, personal and professional, than Hao did, and that allows for a fuller telling of the CEO’s story in places. For example, both writers cover the tragic story of Altman’s sister Annie, her estrangement from the family, and her accusations in particular about suffering sexual abuse at the hands of Sam (something he and the rest of the Altman family vehemently deny). Hagey’s telling provides a more nuanced picture of the situation, with more insight into family dynamics.  Hagey concludes by describing Altman’s reckoning with his role in the long arc of human history and what it will mean to create a “superintelligence.” His place in that sweep is something that clearly has consumed the CEO’s thoughts. When Paul Graham asked about preserving GPT-4, for example, Altman had a response at the ready. He replied that the company had already considered this, and that the sheet of metal would need to be 100 meters square.

In the Northern Hemisphere during the spring, the bright star Regulus is easy to spot above the eastern horizon. The alpha star of the constellation Leo, Regulus is the spiky star centered in this telescopic field of view. Regulus is a hot, rapidly spinning star that is known to be part of a multiple star system.   CREDIT: Markus Horn Get the Popular Science daily newsletter💡 Breakthroughs, discoveries, and DIY tips sent every weekday. June 1Crescent Moon Visible Between Mars and RegulusJune 11Full Strawberry MoonMid JuneMercury Shows Off June 16-18The Red Planet Meets the Blue Heart of Leo June 20Summer SolsticeJune 30International Asteroid Day While the relatively short nights of summer mean less dark skies for stargazing, this month should still provide plenty to occupy those of us given to looking to the sky. June will feature several opportunities to see Mars and the moon in close proximity to Regulus, the iconic blue star(s) that shine from the heart of Leo, along with two weeks’ worth of excellent opportunities for observing Mercury. And did you know that June 30 is International Asteroid Day? June 1– Crescent Moon Visible Between Mars and Regulus The first evening of June will find the crescent moon sitting squarely between Mars and Regulus, the brightest member of the constellation Leo. Interesting fact: while it looks like a single object, the blue “star” we see as Regulus isn’t just one star. It’s actually four. The largest and brightest, Regulus A, is significantly hotter than our sun and way, way brighter than our sun, and is believed to be in a binary orbit with a much smaller object. This object is most likely a white dwarf, but it has never been observed directly. The other two stars–Regulus B and C–are also dwarf stars, and are also locked in a binary orbit. Anyway, keep Regulus in mind, because we’ll be returning to it later in the month. June 11– Full Strawberry Moon This month, the moon will reach peak illumination in the early hours of June 11. If you’re on EDT, the full moon will be at 3:44 a.m. This month’s moon is called the Strawberry Moon, and of all the lovely names for the full moon, June’s might just be the prettiest. The name refers to the berries that ripen as the summer solstice approaches, not the color of the moon itself, which will remain resolutely silver. Several Native American languages use this term, including Ojibwe, Oneida, and the Mahican dialect of the Stockbridge-Munsee band of Wisconsin. Other languages have similarly poetic names: in the Catawba language it’s the “River Moon” and in Cherokee it’s “They Are Arriving/Plants in Garden are Sprouting Month”, while in Seneca and Tunica it’s simply the “Summer Moon.” Mid-June– Mercury Shows Off Our solar system’s innermost planet can be difficult to observe—it’s small, dim, and a lot of the time, it simply gets lost in the glare of the sun. However, this month marks one of the regular periods when Mercury appears far enough removed from the sun to be visible to the naked eye. Throughout June, Mercury will approach its maximum eastern elongation,the point at which it appears furthest east of the sun. Unfortunately, its magnitude—i.e. its apparent brightness—will decline over the course of the month, and by the time it hits maximum elongation in early July, it’ll be dim enough that you might struggle to spot it without the aid of a telescope or some binoculars. This means that mid-June will offer the best balance of elongation and magnitude. As per the ever indispensable Farmer’s Almanac, Mercury should be visible between 9:00 p.m. and 9:15 p.m. local time, low in the sky to the west-northwest. On June 26, it’ll peek out from slightly below and to the left of the crescent moon.  [ Related: Mercury stuns in incredibly detailed new images. ] June 16-18– The Red Planet Meets the Blue Heart of Leo So, another thing about Regulus: it sits close to the plane of the solar system, which means that it is often seen in close proximity to the moon and the planets. This month brings one such occasion: for the nights of June 16, 17, and 18, Regulus will appear right next to Mars. The proximity of the Red Planet and the blazing blue heart of the constellation Leo should make for a pretty spectacular celestial juxtaposition. June 20– The Summer Solstice In the Northern Hemisphere, June 20 is the day on which the sun is highest in the sky, aka the summer solstice! This is the day on which the North Pole is tilted most directly toward the sun, bringing 24-hour daylight to the Arctic Circle and the longest day of the year to the rest of the Northern Hemisphere. Summer is here, y’all! June 30– International Asteroid Day June 30 marks the anniversary of the Tunguska Event, a frankly terrifying asteroid strike that remains the largest asteroid impact event in recorded history. On June 30, 1908, an asteroid estimated to be  about 160 to 200 feet wide exploded several miles above the surface of a remote area of Siberia. The force of the detonation is estimated to be comparable to  between 3 and 50 megatons of TNT, and registered on seismographs around the world. For comparison, the atomic bombs dropped on Hiroshima and Nagasaki had yields of 0.015 and 0.021 megatons, respectively.) The resultant shockwave flattened an estimated 80 million trees over an area of 830 square miles and broke windows hundreds of miles away. In 2014, a group of scientists proposed that June 30 be designated International Asteroid Day. The UN adopted the idea two years later. The day recognizes the potentially calamitous effect of asteroid impacts—what might have happened had the Tunguska asteroid hit a city instead of a barren part of Siberia doesn’t really bear thinking about—and to raise awareness about the importance of asteroid-tracking endeavors. Anyway, hopefully June’s stargazing endeavors won’t reveal any terrifying asteroids hurtling toward us. Whatever you’re setting your sights on, though, you’ll get the best experience if you get away from any sources of light pollution—and you make sure to check out our stargazing tips before you head off into the darkness. Until next month!

Google's reckoning Google and DOJ tussle over how AI will remake the web in antitrust closing arguments Google and the DOJ get one last chance to make their cases. Ryan Whitwam – May 30, 2025 5:40 pm | 15 Credit: Ryan Whitwam Credit: Ryan Whitwam Story text Size Small Standard Large Width * Standard Wide Links Standard Orange * Subscribers only   Learn more From its humble beginnings in the late 20th century, Google has come to dominate online searches, putting it squarely in the US government's antitrust crosshairs. The ongoing search antitrust case threatens to upend Google's dominance, giving smaller players a chance to thrive and possibly wiping others out. After wrapping up testimony in the case earlier this month, lawyers for Google and the Department of Justice have now made their closing arguments. The DOJ won the initial trial, securing a ruling that Google used anticompetitive practices to maintain its monopoly in general search. During the time this case has taken to meander its way through the legal system, the online landscape has been radically altered, making it harder than ever to envision a post-Google Internet. To address Google's monopoly, the DOJ is asking United States District Judge Amit Mehta to impose limits on Google's business dealings and order a divestment of the Chrome browser. Forcing the sale of Chrome would be a major penalty and a coup for the DOJ lawyers, but this issue has been overshadowed somewhat as the case drags on. During closing arguments, the two sides dueled over how Google's search deals and the rise of AI could change the Internet as we know it. Collateral damage This case has examined the myriad ways Google used its influence and money to suppress competition. One of the DOJ's main targets is the placement deals Google signs with companies like Apple and Mozilla to be the default search provider. Google has contended that people can change the defaults anytime they wish, but the DOJ produced evidence at trial that almost no one does, and Google knows that. During closing arguments,  Mehta asked both sides about testimony from a Mozilla executive alleging that losing the Google search deal could destroy the company. Similarly, Apple's Eddie Cue said he loses sleep over the possibility of losing the Google revenue—unsurprising as the arrangement is believed to net the company $20 billion per year. Should Firefox die to teach Google a lesson? Credit: Santiago Mejia/San Francisco Chronicle Should Firefox die to teach Google a lesson? Credit: Santiago Mejia/San Francisco Chronicle The DOJ's David Dahlquist admitted that there could be some "private impact" but contended Apple and Mozilla are overestimating the risk. Mehta didn't seem totally satisfied with the government's position, noting that he didn't want to damage other markets in an effort to fix search. Google's counsel also went after the government on the privacy front. One of the DOJ's proposed remedies would require Google to license its search index and algorithm, which CEO Sundar Pichai claimed was no better than a spinoff of Google's core product. Google also claims that forcing it to license search would put everyone's privacy at risk because it has a vast amount of user data that fuels search. Google attorney John Schmidtlein said the DOJ's treatment of user privacy in the remedies was a "complete failure." Mehta questioned the government lawyers pointedly on the issue of privacy, which he noted was barely addressed in the remedy filings. The DOJ's Adam Severt suggested an independent committee would have to be empaneled to decide how to handle Google's user data, but he was vague on how long such a process could take. Google's team didn't like this idea at all. Case may hinge on AI During testimony in early May, Mehta commented that the role AI plays in the trial had evolved very quickly. In 2023, everyone in his courtroom agreed that the impact of AI on search was still years away, and that's definitely not the case now. That same thread is present in closing arguments. Mehta asked the DOJ's Dahlquist if someone new was just going to "come off the sidelines" and build a new link-based search product, given  the developments with AI. Dahlquist didn't answer directly, noting that although generative AI products didn't exist at the time covered by the antitrust action, they would be key to search going forward. Google certainly believes the AI future is already here—it has gone all-in with AI search over the past year. At the same time, Google is seeking to set itself apart from AI upstarts. "Generative AI companies are not trying to out-Google Google," said Schmidtlein. Google's team contends that its actions have not harmed any AI products like ChatGPT or Perplexity, and at any rate, they are not in the search market as defined by the court. Mehta mused about the future of search, suggesting we may have to rethink what a general search engine is in 2025. "Maybe people don’t want 10 blue links anymore," he said. The Chromium problem and an elegant solution At times during the case, Mehta has expressed skepticism about the divestment of Chrome. During closing arguments, Dahlquist reiterated the close relationship between search and browsers, reminding the court that 35 percent of Google's search volume comes from Chrome. Mehta now seems more receptive to a Chrome split than before, perhaps in part because the effects of the other remedies are becoming so murky. He called the Chrome divestment "less speculative" and "more elegant" than the data and placement remedies. Google again claimed, as it has throughout the remedy phase, that forcing it to give up Chrome is unsupported in the law and that Chrome's dominance is a result of innovation. Even if Mehta leans toward ordering this remedy, Chromium may be a sticking point. The judge seems unconvinced that the supposed buyers—a group which apparently includes almost every major tech firm—have the scale and expertise needed to maintain Chromium. This open source project forms the foundation of many other browsers, making its continued smooth operation critical to the web. If Google gives up Chrome, Chromium goes with it, but what about the people who maintain it? The DOJ contends that it's common for employees to come along with an acquisition, but that's far from certain. There was some discussion of ensuring a buyer could commit to hiring staff to maintain Chromium. The DOJ suggests Google could be ordered to provide financial incentives to ensure critical roles are filled, but that sounds potentially messy. A Chrome sale seems more likely now than it did earlier, but nothing is assured yet. Following the final arguments from each side, it's up to Mehta to mull over the facts before deciding Google's fate. That's expected to happen in August, but nothing will change for Google right away. The company has already confirmed it will appeal the case, hoping to have the original ruling overturned. It could still be years before this case reaches its ultimate conclusion. Ryan Whitwam Senior Technology Reporter Ryan Whitwam Senior Technology Reporter Ryan Whitwam is a senior technology reporter at Ars Technica, covering the ways Google, AI, and mobile technology continue to change the world. Over his 20-year career, he's written for Android Police, ExtremeTech, Wirecutter, NY Times, and more. He has reviewed more phones than most people will ever own. You can follow him on Bluesky, where you will see photos of his dozens of mechanical keyboards. 15 Comments

To state the obvious: Our species has fully entered the Age of AI. And AI is here to stay. The fact that AI chatbots appear to speak human language has become a major source of confusion. Companies are making and selling AI friends, lovers, pets, and therapists. Some AI researchers falsely claim their AI and robots can “feel” and “think.” Even Apple falsely says it’s building a lamp that can feel emotion. Another source of confusion is whether AI is to blame when it fails, hallucinates, or outputs errors that impact people in the real world. Just look at some of the headlines: “Who’s to Blame When AI Makes a Medical Error?” “Human vs. AI: Who is responsible for AI mistakes?” “In a World of AI Agents, Who’s Accountable for Mistakes?” Look, I’ll give you the punchline in advance: The user is responsible. AI is a tool like any other. If a truck driver falls asleep at the wheel, it’s not the truck’s fault. If a surgeon leaves a sponge inside a patient, it’s not the sponge’s fault. If a prospective college student gets a horrible score on the SAT, it’s not the fault of their No. 2 pencil. It’s easy for me to claim that users are to blame for AI errors. But let’s dig into the question more deeply. Writers caught with their prose down Lena McDonald, a fantasy romance author, got caught using AI to copy another writer’s style. Her latest novel, Darkhollow Academy: Year 2, released in March, contained the following riveting line in Chapter 3: “I’ve rewritten the passage to align more with J. Bree’s style, which features more tension, gritty undertones, and raw emotional subtext beneath the supernatural elements.” This was clearly copied and pasted from an AI chatbot, along with words she was passing off as her own. This news is sad and funny but not unique. In 2025 alone, at least two other romance authors, K.C. Crowne and Rania Faris, were caught with similar AI-generated prompts left in their self-published novels, suggesting a wider trend. It happens in journalism, too. On May 18, the Chicago Sun-Times and The Philadelphia Inquirer published a “Summer Reading List for 2025” in its Sunday print supplement, featuring 15 books supposedly written by well-known authors. Unfortunately, most of the books don’t exist. Tidewater Dreams by Isabel Allende, Nightshade Market by Min Jin Lee, and The Last Algorithm by Andy Weir are fake books attributed to real authors. The fake books were dreamed up by AI, which the writer Marco Buscaglia admitted to using. (The article itself was not produced by the newspapers that printed it. The story originated with King Features Syndicate, a division of Hearst, which created and distributed the supplement to multiple newspapers nationwide.) Whose fault was this? Well, it was clearly the writer’s fault. A writer’s job always involves editing. A writer needs to, at minimum, read their own words and consider cuts, expansions, rewording, and other changes. In all these cases, the authors failed to be professional writers. They didn’t even read their books or the books they recommended. Fact-checkers exist at some publications and not at others. Either way, it’s up to writers to have good reason to assert facts or use quotes. Writers are also editors and fact-checkers. It’s just part of the job. I use these real-life examples because they demonstrate clearly that the writer — the AI user — is definitely to blame when errors occur with AI chatbots. The user chooses the tool, does the prompt engineering, sees the output, and either catches and corrects errors or not. OK, but what about bigger errors? Air Canada’s chatbot last year told a customer about a bereavement refund policy that didn’t exist. When the customer took the airline to a small-claims tribunal, Air Canada argued the chatbot was a “separate legal entity.” The tribunal didn’t buy it and ruled against the airline. Google’s AI Overviews became a punchline after telling users to put glue on pizza and eat small rocks. Apple’s AI-powered notification summaries created fake headlines, including a false report that Israeli Prime Minister Benjamin Netanyahu had been arrested. Canadian lawyer Chong Ke cited two court cases provided by ChatGPT in a custody dispute. The AI completely fabricated both cases, and Ke was ordered to pay the opposing counsel’s research costs. Last year, various reports exposed major flaws in AI-powered medical transcription tools, especially those based on OpenAI’s Whisper model. Researchers found that Whisper frequently “transcribes” content that was never said. A study presented at the Association for Computing Machinery FAccT Conference found that about 1% of Whisper’s transcriptions contained fabricated content, and nearly 38% of those errors could potentially cause harm in a medical setting. Every single one of these errors and problems falls squarely on the users of AI, and any attempt to blame the AI tools in use is just confusion about what AI is. The big picture What all my examples above have in common is that users let AI do the user’s job unsupervised. The opposite end of the spectrum of turning your job over to unsupervised AI is not using AI at all. In fact, many companies and organizations explicitly ban the use of AI chatbots and other AI tools. This is often a mistake, too. Acclimating ourselves to the Age of AI means finding a middle ground where we use AI tools to improve our jobs. Most of us should use AI. But we should learn to use it well and check every single thing it does, based on the knowledge that any use of AI is 100% the user’s responsibility. I expect the irresponsible use of AI will continue to cause errors, problems, and even catastrophes. But don’t blame the software. In the immortal words of the fictional HAL 9000 AI supercomputer from 2001: A Space Odyssey: “It can only be attributable to human error.”

Streaming Wars is a weekly opinion column by IGN’s Streaming Editor, Amelia Emberwing. Check out the last entry No, Netflix Isn't Saving Hollywood (But It Isn't Killing It, Either)This column contains spoilers for Season 2 of The Last of Us on HBO Max as well as The Last of Us Part II game. When Joel was brutally killed in the second episode of HBO’s The Last of Us Season 2, it confirmed what many fans of the games expected was coming. But as the season progressed after that point, Joel’s death came and went without any significance. Replacing it was, for me, a certainty: what was a controversial decision for the The Last of Us game franchise would prove to be a killing blow for the television series.Now, I realize that an adaptation fundamentally deviating from its source material can be polarizing in and of itself, but the HBO series simply did not need to kill Joel to successfully tell its story.First and foremost, I think it’s important to note that there’s a reason that this column is being written at the end of the season rather than immediately after Joel’s (Pedro Pascal) death in Episode 2. I did want to be wrong, for whatever that sentiment might be worth. I dutifully watched the rest of the season, hoping that the show’s writers would find a way to reset their story and carry on their narrative in any kind of meaningful way. But, despite the best efforts of Bella Ramsey and newcomers Isabela Merced, Kaitlyn Dever and Young Mazino, there’s little to be done when your blockbuster show’s first season was fully reliant on a relationship that no longer exists. The show’s audience — which is made up of plenty of folks who have never played the games — signed up for a series that no longer exists. The Last Of Us Series Messes With Canon, But the Wrong PartsThe Last of Us has implemented a series of story elements that deviate from the game, and vary in impact, but have broadly served the medium shift. Bill (Nick Offerman) and Frank’s (Murray Bartlet) Season 1 episode wasn’t just the best of the series, it was one of the best episodes of television that year, it hasn’t mattered at all that Dever’s Abby isn’t jacked the way she is in the game, Season 1 had tendrils instead of spores, Stalkers play more of a role in the series than they did during gameplay, etc.But the Big Joel Death Scene™ features both 1:1 scenes and major canon divergence, and the core problem with the majority of Season 2 is that the series stayed loyal where it shouldn’t have and diverted where it should have remained true to story. In killing Joel and revealing Abby’s motives from the start, The Last of Us series removed any reason for the audience to return in Season 3.In the game, players stuck around when it came time to play Abby because they needed to know why the hell she did what she did. By the time that information is revealed, Abby had become interesting enough for people to keep playing. In the series, since Abby’s motivations were revealed pretty much in the series premiere, all viewers have to look forward to now is wondering who’s going to shoot who or who is going to forgive who first. And, with respect to what I know is a long adored franchise, I’m forced to ask why should the television audience care?The series either needed to keep Joel alive, choosing to have Abby beat him within an inch of his life and have Ellie believe that he was dead before leaving Jackson on her revenge tour, or leave Abby’s motives a mystery. Joel may have been the inciting incident that made the forgiveness meaningful in the game, but let’s not pretend it’s the only way to get to the desired end result. This series has wildly talented writers attached. It can be done. Meanwhile, while the mystery of Abby’s motivations wouldn’t have been enough to keep me around personally, I can see why it would appeal to a broader television audience. Now though, we’re all stuck in an impending future of no catharsis.Not One, Not Two, But Three Shows in One [Derogatory]Ellie spent much of this season insisting she’s not like Abby despite her rising body count and similar obsession. This will remain a throughline for the upcoming season (or seasons, if co-creator Craig Mazin has his way) even though Ellie will continue to make rash decisions on her quest for revenge. All of this will come after Ellie’s current pickle, as we left her with Abby’s gun pointed squarely at her face. Season 2’s odd “cliffhanger” is another 1:1 pull from the game, as this is the moment where you shift from playing Ellie to playing Abby. This means that we can likely expect the central focus of the series to shift yet again, giving us not one show, not two shows, but a surprise third show. The thing about these focus and perspective shifts is that they totally could have worked if they had billed The Last of Us as an anthology series with the overall wrap-around (the narrative treatment surrounding the individual stories that ties everything together) being the apocalypse they’re all sharing. But because this was presented as a traditional prestige series, there are rules and expectations as to how the story is meant to play out. Storytelling rules are made to be broken, but Season 2 does not inspire any faith that the rest of The Last of Us series will succeed in doing so.Television has always played with the death of the mentor. It’s a trope that often offers more meaning than most, forcing the protagonist to finally take said mentor’s lessons to heart or otherwise reckon with the devastation of their loss. The difference here is that there is typically a broader ensemble to rely on to avoid shaking up the core of the series. We get a little bit of that from Season 2 in Merced’s Dina and Manzino’s Jesse, but they aren’t meaningfully established before the core relationship of the series is destroyed. By introducing them later — and then giving us little reason to care about them until after that still — the foundation of the series remains fractured in a way that seems beyond repair. But that fracture was always avoidable.All signs point to Season 3 being told from Abby’s perspective.Season 1 set the expectation for television viewers that this was a show about Joel and Ellie. Season 2 haphazardly shifted that focus to a story about Ellie, Dina and their quest for revenge against Abby. All signs point to Season 3 being told from Abby’s perspective as she rescues defecting Seraphites Lev and Yara three days before murdering Jesse and holding Ellie and Tommy (Gabriel Luna) at gunpoint. While I cannot stress enough that Kaitlyn Dever is doing great work with the material she has been given, what reason do folks have to stick around at this point? Television viewers with no knowledge of the games aren’t going to buy into the show suddenly being told from the perspective of someone that they’ve been given no reason to care about. I am from the outside looking in when it comes to the game, but it doesn’t seem likely that the WLF vs. Seraphites war was engaging enough to watch a second time in TV form, even with Isaac’s (Jeffrey Wright) expanded involvement in the series. Is there enough interest in seeing Ellie and Abby’s anticlimactic ending to keep viewers already in the know around?It’s All a CompetitionGames as a medium have plenty of hurdles, but they have the benefit of fewer releases than television by a remarkable margin and, whether the audience loves or hates a game, it’s already bought and paid for. The Last of Us Part II may be plenty controversial (all of the best art is!) but a key factor in any television show’s success is giving the audience a reason to return episode after episode. The story format's constantly shifting perspective is a tremendous hurdle in and of itself. Add in The Last of Us’ wildly short seasons, long hiatuses, and Season 2’s lackluster story, and you’ve got yourself one hell of a pickle when it comes to getting fans back for Season 3. The rest of The Last of Us Part II’s arc is one focused on forgiveness and how being hellbent on revenge tears everything apart. Sometimes the journey on the way to an already well-known ending is worth it for the ride (looking at you, Andor)! But given that The Last of Us Season 2 featured exactly one compelling episode focused on a flashback with its now long-dead protagonist, is that journey worth it? The cast sure is doing their damndest to ensure that’s the case, but will that be enough for the audience?Season 2’s penultimate episode may have been great, and Neil Druckmann has confirmed that we’ll have more Joel flashbacks to come, but it’s just not a bandaid to the show’s problem. No amount of strong performances or stellar production value can fix a failure to adapt your story to a new medium. Joel ain’t coming back to life and there’s no putting Abby’s reveal back in the proverbial bag. The Season 2 finale was lackluster at best, the rest of the season wasn’t much better, and knowing where the story heads next forces me to wonder if The Last of Us’ best days are behind it. It’s a dog eat dog world in the land of TV, and people’s time is a zero-sum game. With such high competition and waning interest from viewers, maybe it’s just time to take the show to look at a pretty lake while it rides out its last moments before losing itself to the infection…