Weird striped rock 'unlike any seen on Mars' found by Perseverance rover.  Here's why NASA's excited 

 While climbing a crater rim, NASA's Perseverance Mars rover spotted a curious striped rock that may have rolled from farther uphill, hinting at treasures the robotic explorer has yet to find. 

https://cdn.mos.cms.futurecdn.net/JFnxysdVpwTsXm7WGfezfA.jpg

https://www.space.com/mars-perseverance-rover-weird-stripy-rock