DNA may be the blueprint for life on Earth, but the deeper scientists look, the less certain it seems that the rest of the universe has to follow the same rules. From RNA worlds and synthetic genetic ...

Are we alone in the Universe? With more than 100 billion galaxies in the observable universe and at least 500 billion planets ...

Scientists suggest that advanced aliens might not have physical bodies, challenging traditional views of extraterrestrial ...

With the release of Disclosure Day, Steven Spielberg’s new film about aliens, a question as old as science fiction itself resurfaces: if aliens were to arrive on Earth, would they come to conquer us, ...

Add Yahoo as a preferred source to see more of our stories on Google. A megacorporation's research ship returns from a 65-year mission into deep space loaded with gooey alien specimens. But—and stop ...