There’s a cloudy patch of space inside our galaxy that unexpectedly produces gamma radiation at clockwork-like…

Two years ago, astronomers watched in confusion as the corona of a supermassive black hole quickly faded from view,…

You may have heard about Planet Nine—a hypothetical planet thought to exist in the outer reaches of the solar…

An unusually bright star has gone missing, in a mystery of cosmic proportions.

Black holes aren’t supposed to leak any light when they smash into each other—or at least that’s what physicists…

Astronomers are puzzling over observations that show a black hole smashing into a mystery object of unusual size.

This black hole—if that’s really what it is—is so close to Earth that you can see its star system without a…

Last year, scientists published a paper with an iconic diagram: a black circle representing, to scale, a…

Next week marks the 30th anniversary of the Hubble Space Telescope’s launch, and NASA’s celebrating its birthday…

Scientists think that they’ve spotted a black hole’s gravity bending light emitted from the disk of matter around it…

A worldwide network of telescopes has produced an image of a jet of radio waves appearing to blast out from the…

Scientists using the Hubble Space Telescope have detected quasars sending outbursts of energy roaring through their…

A typical neutron star measures 22 kilometers (13.6 miles) wide, according to new research. It’s the most accurate…

The OSIRIS-REx spacecraft set out on September 8, 2016 to study the asteroid Bennu. But last fall, one of its…

Physicists are reporting the results of a test to squeeze the vacuum of spacetime itself in order to better detect…

Oh my, this recently discovered black hole... well, it’s big.

Somewhere in the distant universe nearly 10 billion light years from Earth, an enormous black hole is spewing a…

Google researchers are figuring out how to study some of the weirdest theorized physics phenomena, like wormholes…

Scientists hope that the future of gravitational wave detection will allow them to directly observe a mysterious…

This decade marked not just one but a series of turning points in the history of physics.