Mars study presents evidence supporting a cold, icy history instead of a warm, wet past.

A new study challenges the idea of Mars having a warm and wet past, suggesting it has had a cold, icy history. Researchers compared Martian soils to those of Canada's Newfoundland, a cold subarctic climate, and found similarities within the same time period that life first appeared on Earth. This discovery indicates that Mars' environment may have been less conducive to supporting life as we know it.