What's up in

black holes

Art for "New Studies Rescue Gravitational-Wave Signal From the Noise"
gravitational waves

New Studies Rescue Gravitational-Wave Signal From the Noise

Two independent papers vanquish lingering doubts about LIGO’s historic discovery of gravitational waves.

Abstractions blog

Why Black Hole Interiors Grow (Almost) Forever

The renowned physicist Leonard Susskind has identified a possible quantum origin for the ever-growing volume of black holes.

Art for "Galactic Beacons Get Snuffed Out in a Cosmic Eyeblink"

Galactic Beacons Get Snuffed Out in a Cosmic Eyeblink

Quasars powered by supermassive black holes have been unexpectedly vanishing. Scientists have started to figure out why.

Art for "How Holography Could Help Solve Quantum Gravity"

How Holography Could Help Solve Quantum Gravity

In the latest campaign to reconcile Einstein’s theory of gravity with quantum mechanics, many physicists are studying how a higher dimensional space that includes gravity arises like a hologram from a lower dimensional particle theory.


Astronomers Creep Up to the Edge of the Milky Way’s Black Hole

Hot spots have been discovered orbiting just outside the supermassive black hole at the galaxy’s center. Their motions have given us the closest look at that violent environment.

Art for "How Network Math Can Help You Make Friends"
Quantized Columns

The End of Theoretical Physics As We Know It

Computer simulations and custom-built quantum analogues are changing what it means to search for the laws of nature.

Art for "Black Hole Firewalls Could Be Too Tepid to Burn"
Abstractions blog

Black Hole Firewalls Could Be Too Tepid to Burn

String theorists elide a paradox about black holes by extinguishing the walls of fire feared to surround them.

Art for "Star-Swallowing Black Holes Burp Out Their Secrets"

Star-Swallowing Black Holes Reveal Secrets in Exotic Light Shows

Black holes occasionally reveal themselves when passing stars get ripped apart by their gravity. These tidal disruption events have created a new way for astronomers to map the hidden cosmos.

Illustration of a galaxy simulation.

The Universe Is Not a Simulation, but We Can Now Simulate It

Computer simulations have become so accurate that cosmologists can now use them to study dark matter, supermassive black holes and other mysteries of the real evolving cosmos.