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 ...

Scientists may have found a powerful new way to hunt for alien life — not by searching for specific molecules, but by looking for hidden patterns in how those molecules are organized. Researchers ...

Aliens tend to fall into two distinct camps: those who want to zap us with lasers, and those who want to be our cool new intergalactic BFFs. While the world-invasion types tend to grab the headlines ...