Source of the radio waves was tracked to a location that matches that of NASA’s defunct Relay 2 spacecraft, which launched in ...

Australian scientists picked up a mysterious burst of radio waves that briefly appeared brighter than all other signals in ...

Astronomers from the University of New Mexico, along with U.S. and international researchers, have confirmed the existence of ...

Astronomers have discovered the first step in planet birth, finding hitherto unseen structures in 78 planetary disks in the ...

Astronomers discovered that C/2014 UN271, a massive comet more than 10 times larger than any known comet, is emitting jets of ...

Seen as a long strand with smaller threads branching, the Quipu superstructure contains 68 galaxy clusters spanning 1.4 ...

Using a huge radio telescope, we spotted a blindingly fast flash of radio waves that appeared to be coming from somewhere ...

A cloud of high-energy particles surrounding a distant galaxy cluster offers a rare glimpse into the forces shaping the early ...

Astronomers say this small gas giant fits perfectly in a gap in its star’s disk, confirming how young planets shape their ...

Astronomers confirm ‘lite intermediate’ black holes, too large for ordinary stars, revealing clues about early stellar ...

Everything in space—from Earth and the sun to black holes—accounts for just 15% of all matter in the universe. The rest of ...

"The Sculptor Galaxy is in a sweet spot. It is close enough that we can resolve its internal structure, but at the same time ...