NASA's Perseverance rover discovered a peculiar 'float rock' called 'St. Pauls Bay' on Mars' Witch Hazel Hill. This unusual ...

A surprise eruption in Yellowstone National Park shot steam, water and dark-colored rock and dirt high into the sky Tuesday and sent sightseers running for safety. By MEAD GRUVER, AMY BETH HANSON ...

A massive rock, Mesa Vouno, sits between the two beaches ... as the picturesque setting is striking with the icy glaciers set against the dark-colored volcanic beach. One of the best ways to ...