According to evolution, Mars may have had a liquid water ocean 3 billion years ago

 

Image courtesy of NASA / USGS / ESA / DLR / FU Berlin (G. Neukum).

Joel Kontinen

According to evolution, Mars may have had a liquid water ocean 3 billion years ago, The research shows that there is strong geological evidence that Mars once had an ocean, such as ancient shorelines/

“Now, Frédéric Schmidt at the University of Paris-Saclay in France and his colleagues have found that a liquid ocean could have existed with an above water temperature of just below freezing. In this scenario, the ocean is kept warm enough to remain liquid by water circulation that could give it a temperature of around 4.5°C. “

This history of the delta’s geology provides context for the rest of the mission and improves our understanding of Mars’ ancient climate.

Now, Science has included a story of how the discovery was made. They believe that water played a  mayor role in the red planet. 

One of the most interesting aspects of Perseverance’s work is choosing a selection of rocks that might contain traces of ancient life and preparing them for a return journey to Earth”  “

And it is” choosing a selection of rocks that might contain traces of ancient life and preparing them for a return journey to Earth."

God created Earth to teem with various kinds of life, but as far as we know, there’s none on Mars.

Source:

Wilkins, Alex. 2022. Ancient Mars may have had a liquid ocean despite freezing temperatures New Scientist.  17 January.