June 5, 20254 min readThe Trump-Musk Fight Could Have Huge Consequences for U.S. Space ProgramsA vitriolic war of words between President Donald Trump and SpaceX CEO Elon Musk could have profound repercussions for the nation’s civil and military space programsBy Lee Billings edited by Dean VisserElon Musk (left) and President Donald Trump (right) seemed to be on good terms during a press briefing in the Oval Office at the White House on May 30, 2025, but the event proved to be the calm before a social media storm. Kevin Dietsch/Getty ImagesFor several hours yesterday, an explosively escalating social media confrontation between arguably the world’s richest man, Elon Musk, and the world’s most powerful, President Donald Trump, shook U.S. spaceflight to its core.The pair had been bosom-buddy allies ever since Musk’s fateful endorsement of Trump last July—an event that helped propel Trump to an electoral victory and his second presidential term. But on May 28 Musk announced his departure from his official role overseeing the U.S. DOGE Service. And on May 31 the White House announced that it was withdrawing Trump’s nomination of Musk’s close associate Jared Isaacman to lead NASA. Musk abruptly went on the attack against the Trump administration, criticizing the budget-busting One Big Beautiful Bill Act, now navigating through Congress, as “a disgusting abomination.”Things got worse from there as the blowup descended deeper into threats and insults. On June 5 Trump suggested on his own social-media platform, Truth Social, that he could terminate U.S. government contracts with Musk’s companies, such as SpaceX and Tesla. Less than an hour later, the conflict suddenly grew more personal, with Musk taking to X, the social media platform he owns, to accuse Trump—without evidence—of being incriminated by as-yet-unreleased government documents related to the illegal activities of convicted sex offender Jeffrey Epstein.On supporting science journalismIf you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.Musk upped the ante further in follow-up posts in which he endorsed a suggestion for impeaching Trump and, separately, declared in a now deleted post that because of the president’s threat, SpaceX “will begin decommissioning its Dragon spacecraft immediately.” (Some five hours after his decommissioning comment, tempers had apparently cooled enough for Musk to walk back the remark in another X post: “Ok, we won’t decommission Dragon.”)Dragon is a crucial workhorse of U.S. human spaceflight. It’s the main way NASA’s astronauts get to and from the International Space Station (ISS) and also a key component of a contract between NASA and SpaceX to safely deorbit the ISS in 2031. If Dragon were to be no longer be available, NASA would, in the near term, have to rely on either Russian Soyuz vehicles or on Boeing’s glitch-plagued Starliner spacecraft for its crew transport—and the space agency’s plans for deorbiting the ISS would essentially go back to the drawing board. More broadly, NASA uses SpaceX rockets to launch many of its science missions, and the company is contracted to ferry astronauts to and from the surface of the moon as part of the space agency’s Artemis III mission.Trump’s and Musk’s retaliatory tit for tat also raises the disconcerting possibility of disrupting other SpaceX-centric parts of U.S. space plans, many of which are seen as critical for national security. Thanks to its wildly successful reusable Falcon 9 and Falcon Heavy rockets, the company presently provides the vast majority of space launches for the Department of Defense. And SpaceX’s constellation of more than 7,000 Starlink communications satellites has become vitally important to war fighters in the ongoing conflict between Russia and U.S.-allied Ukraine. SpaceX is also contracted to build a massive constellation of spy satellites for the DOD and is considered a leading candidate for launching space-based interceptors envisioned as part of Trump’s “Golden Dome” missile-defense plan.Among the avalanche of reactions to the incendiary spectacle unfolding in real time, one of the most extreme was from Trump’s influential former adviser Steve Bannon, who called on the president to seize and nationalize SpaceX. And in an interview with the New York Times, Bannon, without evidence, accused Musk, a naturalized U.S. citizen, of being an “illegal alien” who “should be deported from the country immediately.”NASA, for its part, attempted to stay above the fray via a carefully worded late-afternoon statement from the space agency’s press secretary Bethany Stevens: “NASA will continue to execute upon the President’s vision for the future of space,” Stevens wrote. “We will continue to work with our industry partners to ensure the President’s objectives in space are met.”The response from the stock market was, in its own way, much less muted. SpaceX is not a publicly traded company. But Musk’s electric car company Tesla is. And it experienced a massive sell-off at the end of June 5’s trading day: Tesla’s share price fell down by 14 percent, losing the company a whopping $152 billion of its market value.Today a rumored détente phone conversation between the two men has apparently been called off, and Trump has reportedly said he now intends to sell the Tesla he purchased in March in what was then a gesture of support for Musk. But there are some signs the rift may yet heal: Musk has yet to be deported; SpaceX has not been shut down; Tesla’s stock price is surging back from its momentary heavy losses; and it seems NASA astronauts won’t be stranded on Earth or on the ISS for the time being.Even so, the entire sordid episode—and the possibility of further messy clashes between Trump and Musk unfolding in public—highlights a fundamental vulnerability at the heart of the nation’s deep reliance on SpaceX for access to space. Outsourcing huge swaths of civil and military space programs to a disruptively innovative private company effectively controlled by a single individual certainly has its rewards—but no shortage of risks, too.

WTF?! When the president of the United States and the world's richest person have a falling out, the ramifications can be widespread. Since Musk and Trump went from friends to enemies, $152 billion has been wiped off Tesla's share price, and Musk has threatened to decommission the SpaceX Dragon spacecraft that NASA relies on to deliver crew to and from the International Space Station. Musk has also said that Trump appears in files relating to Jeffrey Epstein. When he left the White House last week, Musk blasted those who said he'd had a falling out with Trump. The CEO insisted his departure was due to his scheduled 130 days as a government employee coming to an end. But Musk had been publicly criticizing Trump's Big Beautiful Bill Act, warning it would increase the budget deficit. After learning that an electric-vehicle tax credit that would help incentivize Tesla purchases was not included in the bill, Musk called it "a disgusting abomination" on X and urged Americans to call Congress to have the bill killed. On Thursday, the two men used their respective social media platforms to throw insults at each other. At one point, Trump threatened to "terminate Elon's Governmental Subsidies and Contracts" as a way to slash billions of dollars from the budget. The warning sent Tesla's shares down just over 14%, wiping around $152 billion off its valuation – and almost $100 billion off Musk's total net worth. In response to Trump's threat to cancel Musk's government contracts, Musk said SpaceX will begin decommissioning its Dragon spacecraft immediately. The craft, which NASA relies on for transport missions including ferrying astronauts to the ISS, is under contract worth roughly $4.9 billion. The capsule is the only US spacecraft capable of flying humans into orbit. The only other crewed spacecraft that sends astronauts to the ISS is Russia's Soyuz system. However, after an X user told him to "cool off," Musk wrote, "Ok, we won't decommission Dragon." // Related Stories As the war of words has grown, Musk said Trump's controversial tariffs will cause a recession in the second half of this year. But his "really big bomb" was an allegation that Trump appears in the files of pedophile financier Jeffrey Epstein, who killed himself in his jail cell in August 2019 while awaiting trial. Musk has also shared a post calling for Trump's impeachment and posted a poll asking if a new political party should be created in the US that "actually represents the 80% in the middle." 81% of the 4.4 million respondents have voted yes. One has to wonder if Musk believes his time in the White House was worth it. Beyond his reputational damage, his companies have suffered by association. Tesla sales were down 50% last month, and there have been protests and attacks on dealerships. The company's share price is down 40% from its all-time high on December 17, 2024, before Musk was part of DOGE.