Black Holes

Primordial Black Holes Could Have Triggered the Formation of Supermassive Black Holes

Computer simulations show the role primordial black holes may have played in the early universe, but the process isn't clear…

3 days ago

A Dormant Black Hole has Been Discovered Just Outside the Milky Way

What happens when a massive star dies? Conventional wisdom (and observational evidence) say that it can collapse to form a…

4 weeks ago

We Finally Know Where the Highest Energy Cosmic Rays are Coming From: Blazars

Way out there in space is a class of objects called blazars. Think of them as extreme particle accelerators, able…

4 weeks ago

A Star Came too Close to a Black Hole and was Torn Apart. Surprisingly Little Actually Went In

What happens when a star wanders too close to a supermassive black hole? The obvious story is that it gets…

1 month ago

One Star Flies Past the Milky Way’s Black Hole at 3% the Speed of Light

There's a population of stars in the heart of our galaxy whipping around Sagittarius A* (the Milky Way's central supermassive…

1 month ago

Most Black Holes Spin Rapidly. This one… Doesn’t

A Chandra X-ray Observatory view of the supermassive black hole at the heart of quasar H1821+643. Courtesy NASA/CXC/Univ. of Cambridge/J.…

2 months ago

Gaia Could Detect Free-Floating Black Holes Passing Near Stars in the Milky Way

The thing with black holes is they're hard to see. Typically we can only detect their presence when we can…

2 months ago

We Could Discover new Kinds of Particles Around Black Holes Through Gravitational Waves

A new study has shown how gravitational waves can be used to detect exotic particles orbiting black holes.

2 months ago

Hubble Pins Down the Mass of a Potential Free-Floating Black Hole That’s 5,000 Light-Years Away

Earlier this year, astronomers used microlensing and the Hubble Space Telescope to detect, for the first time, a rogue black…

2 months ago

A new Quantum Technique Could Enable Telescopes the Size of Planet Earth

A new technique that incorporates quantum techniques to interferometry could trigger another revolution in astronomy!

3 months ago