Extraterrestrial life could betray itself not in the molecules themselves, but in their arrangement. A recent study shows ...

We've been looking at nature the wrong way, argues Rowan Hooper. If we stop focusing on the individual, we get a whole new ...

Suppose there are signs of extraterrestrial life and we have not yet been able to detect them. What does that mean? In Nature ...

GREENBELT, Md. -- A team of international scientists says they've found sugars in meteorites that could be essential to the creation of life. The team, which included scientists from NASA and other ...

NASA's hunt for alien life may be undermined by its own instruments, according to a group of leading astrobiologists who warn that current tools and mission designs are likely missing subtle, but ...

A new batch of declassified Pentagon UFO materials is fueling fresh public fascination — but files still do not confirm ...