GIZMODO.COM
Mars Orbiter Captures a Winter Wonderland on Summertime Mars
By Passant Rabie Published December 25, 2024 | Comments (0) | A view of the icy hills in the Australe Scopuli region near the south pole of Mars. ESA/DLR/FU Berlin Its beginning to look a lot like Christmason Mars. The otherworldly landscape is, for the most part, a distinct red hue, but recent images reveal unusual frosty features that have turned the Red Planets south pole white. The European Space Agencys (ESA) Mars Expressorbiter captured stunning views of a winter wonderland on Mars, but this isnt your regular snowfall. Instead, Mars south pole is covered in layers of carbon dioxide ice and dust, according to ESA, creating the mesmerizing sceneacross the planets southerly region of Australe Scopuli. The winter season on Mars sees temperatures drop as low as -190 degrees Fahrenheit (-123 degrees Celsius). As cold as it is, Mars doesnt get more than a few feet of snow. Unlike snow on Earth, Martian snow comes in two flavors: water ice and carbon dioxide, or dry ice. On the one hand, water ice turns to gas before it touches the surface, due to the planets thin atmosphere;dry ice, on the other hand, does reach the surface. Frosty swirls layered across the South Pole Of Mars. Credit: ESA/DLR/FU Berlin Although it looks like a winter wonderland, the images were taken in June, when it was almost summertime at Mars south pole. According to an ESA release, the warming rays of the Sun are causing the seasonal ice layers to begin their retreat, evident on the left side of the image where dark patches are swooping in.As sunlight shines through the dry ices translucent upper layers, the ice at the bottom sublimatesturns to vapor directly from a solid stateand creates pockets of trapped gas. The pressure builds up until the layers of ice at the top start to crack, sending jets of gas bursting through the surface, carrying dark dust from below. After bursting its way through, the dust then falls back onto the surface in a fan-shaped pattern guided by the wind. A view across icy hills in the Australe Scopuli region near the south pole of Mars. Credit: ESA/DLR/FU Berlin In the above view of Australe Scopulis seasonal ice caps, layers of ice and dust overlap in a swirling dream across the Martian surface. The image was captured by the High Resolution Stereo Camera on Mars Express, allowing the topography of the landscape to be derived from the digital terrain model. The image offers a closer look at the fan-shaped pattern created by the bursts of dust, creating boundaries between the layered deposits.ESAs Mars Express launched in 2003, and has provided breathtaking images of the Martian landscape for more than 20 years. The spacecraft compiled the most complete map of the chemical composition of Mars atmosphere, observed the planets moons Phobos and Deimos in detail, and traced the history of water across Mars, according to ESA. The mission also carried a lander named Beagle 2, but it was lost on arrival and never conducted scientific operations on the Red (or, apparently, white) Planet.Daily NewsletterYou May Also Like By Passant Rabie Published December 20, 2024 By Passant Rabie Published December 10, 2024 By Passant Rabie Published December 4, 2024 By Passant Rabie Published December 2, 2024 By Passant Rabie Published November 23, 2024 By Passant Rabie Published November 12, 2024
0 Reacties 0 aandelen 21 Views