Astronomers used the VLA and MeerKAT radio telescopes to search the Hycean exoplanet K2-18b for alien technosignatures, analyzing millions of signals but finding no confirmed artificial radio transmis ...

The findings suggest that if alien technologies exist, they are probably rare, distant, or long-lasting rather than frequent and nearby. Instead of expecting an obvious signal to appear soon, ...

A recent study by EPFL finds that extraterrestrial signals in the Milky Way are likely rare and distant, with few detectable transmissions reaching Earth at any time ...

On Thursday the U.S. president ordered the release of federal files related to UFOs and aliens, although no evidence of extraterrestrials visiting Earth is known to exist ...