Sky & Telescope
Icy Rivers May Have Flowed on Ancient Mars
New research led by Peter Buhler from the Planetary Science Institute proposes that a carbon-dioxide ice cap may have acted as an insulating layer on Mars, allowing rivers and a large lake to form in the planet’s southern highlands. DEEPS Professor James Head commented, "Peter Buhler has done a magnificent job of exploring the implications of possible massive atmospheric collapse and CO2 ice accumulation in the south circumpolar region at a critical early time in the history of Mars."
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