From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

NASA’s Perseverance rover will cache this pristine sample and others for return to Earth, which will “change everything for Mars science.” NASA’s Perseverance Mars rover has collected its first sample ...

Polling shows that nearly half of Americans now believe aliens have visited this planet—and that the number who aren't sure ...