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The southern polar region of Mars is covered with unusual reliefs. These reliefs look like spiders and grow and ramify during the Martian winter.
The scientific name for these spider-like traits is Araneiforms and they are created when the carbon dioxide turns to ice during the winter. When the season changes and the sunlight returns, the surface warms up and releases gas trapped beneath it. The erosion also sculpts several channels on the surface, resembling the legs and body of the spiders. Spiders are usually hundreds of meters long.
NEW: Jamming with the "spiders" of Mars
As the sun warms the ground at the South Pole, spiders begin to emerge. Wait, what?
NASA / JPL / University of Arizona: //t.co/1ZN8LcHLiU #March #science pic.twitter.com/PmFZtVHNhu – HiRISE (NASA) ( @HiRISE) July 10, 2018
"Over time, the trapped carbon dioxide is gaining pressure and is finally strong enough to break the ice in the form of a jet that erupts dust. The gas is released into the atmosphere and darker dust can settle around the vent or be carried by the winds to produce streaks.The loss of sublimed carbon dioxide leaves behind these features resembling to spiders engraved in the surface. "NASA's statement reads:"
Martian spiders are unlike anything we see on Earth, but they are an active seasonal process on Mars and continue to To amaze scientists.New NASA image shows a close-up view amazing of these erosion features. The image is taken by NASA's Mars Reconnaissance Orbiter (MRO) on May 13, 2018 during the winter at the South Pole in Mars. Mars Reconnaissance Orbiter also reported the first detection of the cumulative growth of chains from one Martian year to another. MRO 's High Resolution Imaging Science Experiment (HiRISE) has been monitoring Mars spiders for years and is tracking changes from one year to the next.
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