If our Moon suddenly vanished, Earth would already face dramatic consequences. But replacing it with entire alien worlds would take things to an entirely different level. Some of these exoplanets ...

When worlds collide…suns act squirrely. Astronomers have witnessed a rare and violent cosmic crash between two planets, and they say the fallout could teach us about the formation of our world. The ...

An exoplanetary system about 116 light-years from Earth could flip the script on how planets form, according to researchers who discovered it using telescopes from NASA and the European Space Agency, ...

In a blow to anyone dreaming that complex life may exist elsewhere in the universe, a new study suggests we're unlikely to find it around many of the most common stars in the galaxy. Earth-like ...

Astronomers have narrowed down the cosmic search for life, identifying fewer than 50 rocky planets among thousands of known ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Earth is expected to last ...