Perseverance found a weird rock on Mars, and scientists can't identify it

NASA's Perseverance rover has been on Mars for a little while now. It landed successfully in late February and spent a good chunk of March just testing its various systems and ensuring that everything was still in working order after its long journey from Earth. Now, as the rover waits patiently for the tiny Mars helicopter Ingenuity to perform its first flights, the science team is using Perseverance to check out the rocks in the immediate area. One rock, in particular, has caught Perseverance'...