In virtual experiments, AI repeatedly misread dead digital organisms as self-replicating life.

Scientists are raising concerns that we may be overlooking evidence of extraterrestrial life even when it is present. Hidden ...

Add Yahoo as a preferred source to see more of our stories on Google. A new study suggests alien life could be going undetected because scientists focus more on avoiding false discoveries than missing ...

A Harvard University cosmologist who has suggested alien life forms could be sailing into the solar system disguised as meteors is leading the Trump administration’s secretive new scientific advisory ...

Experts stress need for transparency while aiming to prevent premature announcements and protect scientists ...

A lot of attention has recently concentrated on the chances of finding life on Saturn’s other moon, Titan or the dwarf planet Ceres. While that remains a strong possibility, new information gathered ...

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life. Tardigrades—a type of invertebrate ...

Beneath the icy silence of Antarctica's famous Dry Valleys lies a world so unusual that it often resembles another planet.

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In the book version of “Project Hail Mary,” author Andy Weir, known for grounding his fiction in plausible science, describes an alien with a shell of oxidized minerals, two circulatory systems, ...

Steven Spielberg thinks that real-life disclosures of UAPs are "really compelling" and "long overdue." Emily Blunt says she was "completely hooked" when she began researching accounts of supposed real ...

For generations, science fiction has imagined what life might look like on other worlds. Novelist H.G. Wells described nightmarish squid-like Martian invaders in The War of the Worlds, while the ...