Video footage captured by NASA's Perseverance rover shows a small "dust devil" merging with a much larger twister on the surface of Mars.

Video footage captured by NASA's Perseverance rover shows a small "dust devil" merging with a much larger twister on the ...

A 30-foot-high inflatable version of the planet Mars, part of an exhibit at the Kennedy Center in Washington, D.C., rolled ...

The Perseverance rover has found some intriguing samples on the red planet. Here's what they might reveal about the origins ...