From Cheddar.

This animation depicts what the Martian river valley Neretva Vallis might have looked like billions of years ago.

NASA says its Perseverance Rover discovered a potential biosignature last year after it took rock samples from an ancient dry riverbed. The sample could preserve evidence of ancient microbial life.

Connect with Cheddar!
On Facebook: https://facebook.com/cheddar
On Instagram: https://instagram.com/cheddar
On the web: https://cheddar.com
In your inbox: https://need2know.cheddar.com/subscribe