News > NASA rover spots 'whimsical' rock arch on Mars that's defying erosion

NASA rover spots 'whimsical' rock arch on Mars that's defying erosion

Sand worm. Fossilized alien head. Gecko. Cat riding a jet ski. A tiny rock arch on Mars is sparking the imaginations of space fans who are playfully naming objects it resembles. NASA's Curiosity rover got a good look at the weirdly textured rock formation that's resisting the forces of erosion on the red planet.

The rover snapped some close-up views of the dainty, ragged arch, and citizen scientist Kevin Gill put the images together into a mosaic view.