Some of the mysterious gullies seen on Martian sand dunes may be formed by sliding blocks of carbon dioxide, also known as dry ice, according to a NASA research report.
“I have always dreamed of going to Mars,” said Serina Diniega, a planetary scientist at NASA’s Jet Propulsion Laboratory in Pasadena, Calif., and lead author of a report published online by the journal Icarus. “Now I dream of snowboarding down a Martian sand dune on a block of dry ice.”
According to …
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