How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

SIGNS of an alien planet that’s about the same size as Earth have been picked by up a Nasa telescope. Scientists say it might ...

To support alien life, a planet doesn’t have to be exactly like Earth, but it does need a few key ingredients. First, it ...

Astronomers have searched the skies for signs of extraterrestrial technology for decades. These searchers since 1960 have scanned the Milky Way for radio waves, optical flashes, infrared heat and ...

You don't need a rocket ship to visit another world. Right here on planet Earth, there are bizarre landscapes that defy ...