The discovery promises to spark a revolution in physics but more results are needed to know for sure Livesciencecom

The near-Earth asteroid Bennu contains stardust that is older than the solar system and clues about its violent history, three new studies of the asteroid's sample materials show.

The volcanic surface of Jupiter's huge moon Io got a stunning close-up thanks to NASA's Juno mission.

The dinosaurs were not in decline before the asteroid hit, a new study finds. Instead, poor fossilization conditions and unexposed late Cretaceous rock layers mean they're either not preserved or…