For centuries, humanity has wondered whether we are truly alone in the universe — and now, NASA’s top official believes the ...

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 ...

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 ...

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 ...

Thomas Mulligan examines the scientific challenge of defining and searching for non-Earth-like alien life forms that may not rely on carbon, water, or DNA.

Unidentified aerial phenomena (UAPs) have resurfaced at the centre of online discussion after a widely shared interview revisited reports of supposed 'non-human' life linked to recovered unidentified ...

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 ...

For generations, the search for life beyond Earth has focused on avoiding one of science’s biggest mistakes: claiming a discovery that turns out not to be real. Researchers have built entire ...