It's the oldest question on Earth. Where did we come from? Some people may thank a creator from above, but what if the hand ...

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

But the real truth is that alien life on other planets could be even stranger than floating balloons or amorphous organisms ...

While idea may violate Occam’s razor, “it remains a speculative but logically open alternative,” says biologist Robert Endres.

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 ...

Following in the wake of the original Golden Records, a new deep-space delivery hopes to introduce a ‘mostly harmless’ humanity to alien life ...

In September, NASA announced the discovery of a possible sign of life, known as a potential biosignature, on Mars. The Perseverance rover, which has been exploring a dried-up lakebed for years, found ...