accretion disk

A New Idea to Harness Energy From Black Holes

A new study by an international team shows how the physics of a black hole's event horizon could allow us…

1 year ago

A ring of high-energy particles surrounding a black hole suddenly disappeared

In March 2018 astronomers watched a massive black hole surge in brightness. Then over the following year, its ring of…

2 years ago

Black Hole Seen Blasting Out Jets at Close to the Speed of Light

The Chandra X-Ray Observatory has spotted a distant black hole shooting out jets of material, at close to the speed…

2 years ago

Light Behaves Really Strangely Around a Black Hole

A new study led by Caltech researchers show that light can be reflected off of a black hole's disk by…

2 years ago

There’s a Ring of Cool Gas Wrapped Around the Milky Way’s Supermassive Black Hole

There's a lot going on at the center of our galaxy. A supermassive black hole named Sagittarius A-Star resides there,…

3 years ago

First Detailed Image Of Accretion Disk Around A Young Star

For the first time ever, an international team of astronomers - using the ALMA array - have taken a clear…

5 years ago

A Pulsar and White Dwarf Dance Together In A Surprising Orbit

The discovery of a millisecond pulsar orbiting a low-mass white dwarf star has astronomers puzzled, mainly because its orbit defies…

5 years ago

How Massive Can Black Holes Get?

We talk about stellar mass and supermassive black holes. What are the limits? How massive can these things get? Without…

6 years ago

The Physics Behind “Interstellar’s” Visual Effects Was So Good, it Led to a Scientific Discovery

While he was working on the film Interstellar, executive producer Kip Thorne was tasked with creating the black hole that…

7 years ago

Dodging Black Hole Bullets

[/caption] In mid-2009 a binary star system cataloged as H H1743–322 shot off something very unusual. Poised about 28,000 light…

10 years ago