Scientists have discovered unexpected water-ice clouds on a distant, Jupiter-like exoplanet, challenging current atmospheric ...

Rep. Tim Burchett (R-Tenn.) on Tuesday again added to the chorus of lawmakers raising questions about potential sightings of ...

“I've seen pictures and video of things that defy any reason that we have, and everybody says, ‘Well, it's our stuff, it's ...

NASA's Curiosity rover snapped a series of peculiar polygons that look suspiciously like giant fossilized reptile scales.