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 team of researchers argues that the Moon could have been collecting microscopic fragments of alien technology for billions ...

Researchers want to explore the idea that microscopic particles shed by alien civilizations have accumulated on the lunar ...

For over six decades, the Search for Extraterrestrial Intelligence (SETI) has been tirelessly scanning the cosmos for signs of alien life. Despite its extensive efforts, the universe remains eerily ...

Astronomers have been scanning the skies for alien radio signals for decades, but so far they’ve heard nary a peep (with one possible exception). But according to a recent study, that could be because ...

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 ...

Even astronauts have a sense of humor, as shown during NASA's Crew-10 docking on the International Space Station (ISS), when they were met by an "alien" early Sunday morning. Russian cosmonaut Ivan ...