Nearly two decades ago, an experiment floating high above Antarctica caught a weird signal. Designed to capture the radio spurts of cosmic rays falling from above, in 2006 the Antarctic Impulsive ...

A mysterious cosmic object is sending pulses of radio and X-ray waves to Earth every 44 minutes, leaving astronomers baffled and eager for answers. Astronomers have discovered a cosmic anomaly that’s ...

Nearly two decades ago, an experiment floating high above Antarctica caught a weird signal. The balloon-borne suite of instruments recorded a similar event in 2014, and scientists have been scratching ...

A team of astronomers in Australia searching for radio flashes from distant galaxies has found something a lot closer to home. The defunct communications satellite Relay 2, out of commission since ...

(CNN) — Scientists are trying to solve a decade-long mystery by determining the identity of anomalous signals detected from below ice in Antarctica. The strange radio waves emerged during a search for ...

(CNN) — Astronomers in Australia picked up a strange radio signal in June 2024 — one near our planet and so powerful that, for a moment, it outshined everything else in the sky. The ensuing search for ...