At the center of the Milky Way, close to the pull of a supermassive black hole, astronomers have found a strange new radio signal that behaves like a slow, steady clock. This object is more than an ...

Astronomers have finally traced a strange class of radio signals—long a cosmic mystery—to a binary star system made up of a white dwarf and a red dwarf. These findings may transform what scientists ...

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 ...

(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 ...