If ancient alien explorers ever traipsed through Earth's cosmic neighborhood, could it be possible they left behind some interstellar litter on the moon?

Astronomers have identified 45 Earth-like worlds that could be among the most promising places to search for biosignatures—chemical signs of life in distant atmospheres. Inspired by the idea of a real ...

Discover everything about The Hidden Flaw in Our Search for Alien Life: Why We Might Be Looking in the Wrong Place.

In March 2026, SETI Institute researchers contributed to a wide range of conversations about our solar system and the search for life beyond Earth. From explaining unusual features on Mars and ...

On Sept. 19, 1959, the paper "Searching for Interstellar Communications" was published. Printed in the respected scientific ...

Stellar plasma near M-dwarf stars may have hidden alien transmissions by smearing narrowband signals past SETI’s detection limits for decades I reincarnated in Charleston, SC and currently live in Los ...

Add Yahoo as a preferred source to see more of our stories on Google. New SETI rules tighten how scientists verify and announce possible evidence of extraterrestrial intelligence. (CREDIT: SETI) The ...

Solar winds and coronal mass ejections may scatter narrow signals, making them harder for Earth-based telescopes to detect. The SETI Institute uses radio telescopes to search for signs of intelligent ...

The recent, widely covered signal that's allegedly got SETI hot and bothered is almost certainly not aliens. But that doesn't mean it's not cool. Share on Facebook (opens in a new window) Share on X ...

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Scientists hunting for radio signals from any form of advanced extraterrestrial life that might be out there trying to contact us are now starting to wonder if something has been messing with their ...