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black holes

Video simulation of gas around a black hole.

Astronomers Find Black Holes Stirring Up the Biggest Galaxies

December 12, 2019

After a space telescope disintegrated, astrophysicists had little hope of understanding how supermassive black holes agitate giant galaxies. Then they invented a hack.

Animation of a black hole rotating.
Abstractions blog

Black Hole Singularities Are as Inescapable as Expected

December 2, 2019

For the first time, physicists have calculated exactly what kind of singularity lies at the center of a realistic black hole.

Illustration of a circle representing a black hole on a flat black plane with a multicolored bridge rising out of the plane and spanning from the inside to the outside of the circle.
Abstractions blog

Hologram Within a Hologram Hints at Fate of Black Holes

November 19, 2019

Calculations involving a higher dimension are guiding physicists toward a misstep in Stephen Hawking’s legendary black hole analysis.

Craig Callender holding a paddleboard at the beach.

Are We All Wrong About Black Holes?

September 5, 2019

Since the 1970s, physicists have described black holes using borrowed versions of the laws of thermodynamics. But are black holes really thermodynamic systems? Craig Callender worries that the analogy has been stretched too far.

An illustration of an extra-large black hole.
Abstractions blog

Possible Detection of a Black Hole So Big It ‘Should Not Exist’

August 28, 2019

At stake are fundamental ideas about how black holes form — and a six-way bet.

Illustration of three black holes on a starry background
Abstractions blog

To Make Two Black Holes Collide, Try Three

August 15, 2019

How do black holes merge and make gravitational waves? Maybe with a little help from their friends.

Artists impression of AGN driven outflows from a dwarf galaxy
Abstractions blog

Big Black Holes Found in the Smallest Galaxies

July 23, 2019

Tiny, dim “dwarf” galaxies have been found to hide gas-spewing black holes.

Abstractions blog

Philosophers Debate New ‘Sonic Black Hole’ Discovery

June 25, 2019

Opinions differ about what recent measurements of a sound-trapping fluid reveal about light-trapping black holes.

Art for "What the Sight of a Black Hole Means to a Black Hole Physicist"
Quantized Columns

What the Sight of a Black Hole Means to a Black Hole Physicist

April 10, 2019

The astrophysicist Janna Levin reflects on the newly unveiled, first-ever photograph of a black hole.