Astronomers swept millions of candidates and found no alien signals from K2-18b, setting the first power limit on any ...

A comet from another star system does not arrive every year. That is part of what made 3I/ATLAS so compelling when it ...

Even though astronomers didn’t detect alien tech signals from a rare interstellar visitor, the results are worthwhile, they ...

Scientists have updated global rules for announcing possible alien signals. New guidelines emphasize independent verification ...

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an ...

Scientists failed to find radio signals emanating from interstellar comet 3I/ATLAS, further bolstering its status as a ...

When ET phones, don’t pick up. Scientists have outlined a set of protocols for responding to extraterrestrial contact, ...

The object, called 3I/ATLAS, is only the third interstellar visitor ever detected passing through our Solar System.

Scientists have searched one of the only known visitors to us from another solar system for signs of alien technology – and ...

The SETI Institute said Wednesday that extensive radio scans by its telescope in Northern California found no signs of ...

The group leading the charge in the search for extraterrestrial life has given the all clear. The SETI Institute said ...

The mysterious invisible shield around a planet.