From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

Hubble's latest images of interstellar comet 3I/ATLAS reveal sustained, jet-like eruptions and a carbon dioxide-rich coma ...

The Manhattan-sized interstellar visitor hurtling through space has captured the imaginations of UFO watchers for months and ...

A new discovery beneath the Bermuda Triangle has added another layer to the mystery surrounding the region, known for its unexplained ship and aircraft disappearances. Scientists have found a massive ...

Learn about the 3I/ATLAS mystery as Harvard's Avi Loeb reveals 'wobbling jets' that could suggest the interstellar visitor is ...

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

Think you know your Dyson spheres from your dark blobs? This cosmic crossword dives into the strangest, most mind-bending structures ever spotted — or imagined — in the universe.

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

Long before scientists discovered that other stars in the universe host their own planetary systems, humanity had ...

This article contains officially confirmed information combined with expert industry speculation, rumors, and analysis. We will update this page with the latest news as soon as it’s available. Though ...

For more than a century, popular culture has trained us to picture extraterrestrials as bug-eyed, bipedal “little green men” ...

Big sci-fi adaptations are suddenly everywhere again. Every few years, Hollywood remembers just how good sci-fi novels really ...