Martian Gullies' Mysterious Past: A Shift in Understanding The allure of liquid water on Mars has long fascinated astronomers and planetary enthusiasts, who initially interpreted the discovery of gullies as a sign of a watery past relevant to Earth's history.
However, subsequent analysis consistently attributed these formations to seasonal dry ice.
A recent paper from French astrophysicists analyzed Sisyphi Cave, a Martian region near the south pole with an extensive network of gullies.