A team of scientists has an unusual explanation for how and when dark matter — the invisible, mysterious stuff that’s theorized to make up most of the matter in the universe — was formed. The theory ...

Could the universe’s most elusive substance finally have given away its presence? Nearly a century after the first indirect ...

Stars powered by dark matter instead of nuclear fusion could solve several mysteries of the early universe, and we may have ...

The new study reports the detection of a mysterious halo-like glow of gamma rays around the Milky Way, peaking sharply at ...

A stronomers have discovered 53 new supermassive black hole-powered quasars that are blasting out jets of matter at near light-speed that stretch out for up to 7.2 million light-years, around 50 times ...

The powerful coronal mass ejection would have likely destroyed the atmospheres of any potentially habitable planets nearby ...

Quark-gluon plasma, a bizarre state of matter that mimics the early cosmos, is the hottest thing ever made on Earth ...

Voyager 1—the most distant human-made object—has made yet another remarkable discovery having to do with interstellar space. It’s steady, persistent, and long-lasting: a low-frequency hum that’s ...

Supermassive black holes have been known to belch gigantic beams of plasma into space – and now scientists have managed to recreate these fireballs in a lab at CERN. Although black holes are famous ...

An astrophotographer captured a structure that looked like a plasma waterfall on the sun. The structure is believed to be around 60,000-miles-tall. This is the latest in a string of stunning solar ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. How many states of matter are there? When you were young, you probably ...