Advanced aliens, if they exist, may have no physical bodies at all and could be built from materials nothing like human flesh ...

A rare visitor from another star system has undergone one of the most extensive technosignature searches ever conducted on an ...

A comet screaming in from another star system carried alien ice ratios never seen before. What scientists found inside its spinning nucleus is reshaping how we picture worlds beyond our sun.

Internet-famous UFO stories so wild they may just be true Alien and UFO sightings have been anomalies for decades. While the existence of extraterrestrials has become a laughingstock, with SNL making ...

Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.

Add Yahoo as a preferred source to see more of our stories on Google. Left to Right: Steven Yeun in "Nope," the alien in Steven Spielberg's "E.T." and Scarlett Johansson in "Under the Skin" (Universal ...

The discovery of all five nucleobases on Ryugu strengthens the idea that life’s molecular ingredients formed in space before ...

Scientists can't fully agree on what GJ504b actually is. It may be a massive planet or a brown dwarf, a mysterious class of ...

Rare 160-million-year-old sea spider fossils from Southern France look nearly identical to living species, revealing a body ...

When people think of Gene Roddenberry, they usually think of Star Trek, which is understandable considering that the ...

"The universe may contain minds stranger than we can imagine." The post There May Be Bizarre Forms of Consciousness Drifting ...

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.