NASA’s Perseverance Rover Stumbles on Unusual Rock That Looks Like a Skull on Mars, Stun Scientists Mars exploration has grown exponentially over the past few years. Recently, NASA made a discovery on the Red Planet,

A rock containing many smaller round stones could indicate that there was once a large amount of liquid water on the Red Planet.

Perseverance has collected samples of five rocks, performed detailed analysis on seven others, and zapped an additional 83 with its laser.