For decades, astronomers have chased fleeting hints that something alive might be lurking beyond Earth, only to watch each ...

Exoplanets like Earth have been discovered but not all Earth-like planets are equal when it comes to alien life.

Is intelligent alien life really out there? With powerful telescopes identifying more potentially habitable planets each year, the possibility continues to grow. But what would happen if we actually ...

As far as underwhelming headlines go: "No Alien Life Found on Comet" must rank very close to the top. An article with this title appeared in the Guardian on July 6 in response to a story claiming that ...