Perseverance Mars rover finds surprising volcanic rocks in crater that was once a lake
The surprising discovery of volcanic rocks by NASA's Perseverance rover in Jezero Crater could unlock Mars' climate history and reveal when the Red Planet was wet and potentially habitable.
![Perseverance Mars rover finds surprising volcanic rocks in crater that was once a lake](http://cdn.mos.cms.futurecdn.net/RjRRTPxJFgZUCQ6A6bNbYK.jpg?#)