In 2007, David Narkevic, then a physics undergrad student at West Virginia University, stumbled on something unusual when combing through archival data. Two of his professors, Duncan Lorimer and Maura ...

If aliens are watching Earth, they might be able to detect us from the radio signals we beam to Mars to control our rovers there. Astronomers have now listened in on the nearby TRAPPIST-1 system to ...

A Chinese radio telescope detected radio signals that researchers said could be technological traces of an alien civilization. The Five-hundred-meter Aperture Spherical Radio Telescope (FAST) in ...

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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 ...

In the search for extraterrestrial intelligence, alien radio signals would be swamped by interference from radio sources on Earth. To confirm, researchers point away from the source and then back. If ...

If you’re an alien listening to Earth’s radio signals, you may have noticed some changes. Most of the radio waves our tech-obsessed planet is beaming into space now come from the mobile towers that ...