NASA Mars Rover Has a ‘Pet Rock’ in Its Wheel That Refuses to Leave
This story is part of Welcome to Marsour series exploring the red planet. It’s hard for me to pick a favorite rock on Mars. There’s the “butt crack” and the “flower” and, of course, the stunning blueberriesbut my current geologic darling is the NASA Perseverance rover wheel rock, a chunky stowaway that has been clinging … Read more