Mars was once a desert with intermittent oases, Curiosity data suggests
https://www.theregister.com/2025/07/04/mars_was_once_a_desert/
Recent data from Martian probes reveals that Mars once had a dynamic landscape, featuring a desert-like environment with occasional patches of water. This new modeling of the carbon cycle suggests that before liquid water vanished, the planet experienced a series of changes that made it potentially habitable. These findings challenge our understanding of Mars’ history and open up exciting possibilities for the search for life beyond Earth.