Astronomers have detected a repeating radio signal, captured multiple times, originating from an ancient and inactive galaxy.

Astronomers tracking mysterious fast radio bursts (FRBs) stumbled upon an unexpected cosmic puzzle. A burst was detected from ...

Telescopes around the world have spotted a monster radio jet streaming from a quasar dating back to the first 1 billion years ...

Unusual detection bolsters evidence that the mysterious signals can be caused by different astrophysical events.

"There's no other galaxy there," Shah said. The ancient elliptical galaxy where astronomers discovered the radio waves is about 2 billion light-years from Earth and is about 11.3 billion years old, ...