As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a ...

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

Interstellar comet 3I/ATLAS reveals ancient secrets and strange chemistry as the largest object of its kind ever tracked.

What do you get when you take an alien parasite and smush it together with a human being? Would you get to become a supercharged, head-eating anti hero like Venom? Or would you die a slow and painful ...

Researchers used the Green Bank Telescope to study the interstellar comet and found that it exhibits typical cometary behavior, with no unusual features detected ...

A mysterious metal shard, once thought to be a piece of a UFO that crashed in 1947, has sparked years of wild speculation.

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

One that caught attention from many was a type of sea mollusk that washed ashore on South Padre Island in late May.

Harvard's Avi Loeb argues 3I/ATLAS shows signs of alien technology, from its 0.2% probability flight path to bizarre metal ...

Until now, scientists believed that Mars’ skylights – pits in the surface of mars – were formed by volcanic activity. But ...

A new study referencing a past NASA Cassini observation found the presence of 'slushy tunnels' in Saturn's largest moon Titan ...

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