Wonders of Red Planet Dry ice, wetter Mars!

Found a new reservoir of dry ice on Mars suggests that, The planet's surface has been wetter in the relatively recent past, But not necessarily warmer than it is today.

The new experience adds to evidence that, Mars once had a carbon dioxide atmosphere thick enough to keep liquid water on the surface from evaporating. It's unclear whether the planet would have been hospitable for life, however, because temperatures on Mars may actually have been slightly colder during times when the atmosphere had a greater amount of carbon dioxide.

From: The Daily Star