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

Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

Add Yahoo as a preferred source to see more of our stories on Google. This image of interstellar comet 3I/ATLAS was captured by the Hubble Space Telescope's Wide Field Camera, July 21, 2025. (photo ...

A new study proposes searching the moon for remnants of ancient extraterrestrial technology. Researchers suggest the moon's surface could preserve microscopic "technosignatures" left by alien ...

When/if alien life ever cruises toward Earth in big spaceships, we’re probably not just going to see it; we’re going to hear it via narrow radio signals. If an extraterrestrial civilization wanted to ...

This map says I’m supposed to walk over the river.”The male customer pointed at the information board and said.“……There is a ...