Mars was hot then cold then hot again. Could life have really survived there?
An illustration shows two faces of Mars a hot and arid wasteland and as a cold water ice rich enviroment
(Image credit: Robert Lea (created with Canva))
New research suggests that temperatures on ancient Mars may have fluctuated between hot and cold periods through a relatively short period during its lifetime of billions of years. But these hot and cold spells may have been detrimental to life if it existed on the Red Planet.Mars may be a dry and arid planet today, but scientists know that Earth's neighbor was much wetter and much more like our planet in its ancient past.These new findings from a team of researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) suggest how Mars may have sustained its warmth and held on to its water billions of years ...
