Mars in the Past: A Warmer Planet

In the distant past, Mars had a denser atmosphere and was much warmer, allowing abundant liquid water to exist on its surface.

Geological evidence shows that the Red Planet had rivers, lakes, and even oceans, raising questions about its habitability in the past.

The gradual loss of Mars' atmosphere over millions of years led to the cooling of the planet and the drying up of its water bodies, transforming it into the arid environment we know today.

mars

Mars Used to Be Much Warmer