Last week, after braving a field of sand dunes and traversing the desiccated remnants of an ancient river, NASA's Perseverance rover reached the shining rock outcropping on the Martian horizon that the rover's operators have named "Bright Angel."
Perseverance has now begun its scientific investigation of a very unique place in its surroundings. Its first action: digging into the ground, scanning and imaging the Mars soil with X-rays. Over the coming months, scientists will parse the data that Perseverance sends back.
