Black hole ejects matter at 20% light speed in sun-like magnetic event

An international team of astronomers, led by SRON, has observed a sudden outburst of matter near the supermassive black hole ...

Alien signal or atmospheric mystery? NASA reveals truth behind red ‘jellyfish’ lights and sprites over Earth

Mysterious red lights falling from space, initially thought to be alien signals, have been identified by scientists as red ...

The Geminids are one of the best meteor showers of the year—and the weirdest. Here’s how to see them

This December's dazzling display comes from a strange asteroid with comet-like behavior—and a tail of debris that astronomers ...