Add Yahoo as a preferred source to see more of our stories on Google. The first few years of the 2020s have seen the debate over whether humanity is alone in the universe evolve from a far-fetched ...

Advanced alien civilizations may communicate via a series of flashing lights, similar to how fireflies do, a new paper hints. This would potentially make extraterrestrials much harder to spot if we ...

The Drake Equation helps scientists estimate the odds of finding intelligent alien civilizations. It’s an age-old question: Do aliens exist? And what are the odds we’ll make contact? A famous ...