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 ...

In a groundbreaking discovery, astronomers have detected a unique, repeating cosmic radio signal originating from an unknown object in space. The mysterious signal, detected every 44 minutes, is ...

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 ...

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 ...