Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

In the shadow of Pikes Peak, where the air is thin and the bargains are thick, sits a treasure trove that has Colorado’s deal-hunters crossing county lines with empty trunks and returning home with ...

Crabs are often seen as familiar ocean creatures, but some species are far stranger than most people realize. This video ...

Bobbit worms are real marine predators whose appearance and hunting style have shocked scientists and viewers alike. Hidden ...

From new exoplanetary neighbors and a weakening dark energy to the best evidence for life on Mars and an interstellar comet ...