Top Astronomers Just Revealed the Most Convincing Proof of Alien Life Until Today ...

Is intelligent alien life really out there? With powerful telescopes identifying more potentially habitable planets each year ...

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

Astrobiologists propose that alien civilizations need accessible coal deposits to industrialize exoplanets and become detectable from Earth.

Add Yahoo as a preferred source to see more of our stories on Google. A composite view of Mars taken by the Viking I and II probes. NASA/USGS In September, NASA announced the discovery of a possible ...

Astronomers say that there are possible signs of life on Comet 67P, based on data from the European Space Agency's Philae Lander. The comet has features that indicate it may be home to alien life, ...