Add Yahoo as a preferred source to see more of our stories on Google. A composite view of Mars taken by the Viking I and II probes. NASA/USGS In September, NASA announced the discovery of a possible ...

Humans have wondered for centuries whether we are alone in the universe — and a new study suggests that if alien ...

NASA's Pandora satellite lifted off on January 11, 2026, aboard a SpaceX Falcon 9 from Vandenberg Space Force Base, marking the debut of the agency's Astrophysics Pioneers program. This compact ...

NASA has quietly hit pause on what it billed as its first dedicated hunt for alien biosignatures, reacting to fresh data that raised more questions than answers about how to tell life’s fingerprints ...

Discover the mysterious ‘Wow!’ signal, a 1977 transmission that sparked decades of speculation about extraterrestrial life.