What's up in

black holes

Abstractions blog

Responding Rapidly to Big Discoveries

How do scientists react to major breaking science news? For astrophysicists after the big gravitational waves announcement, it was meeting for two weeks in Santa Barbara, California.


Colliding Black Holes Tell New Story of Stars

Just months after their discovery, gravitational waves coming from the mergers of black holes are shaking up astrophysics.

Abstractions blog

LIGO Reports Second Black-Hole Merger

The spokesperson for the Laser Interferometer Gravitational-Wave Observatory called it “a promising start to mapping the populations of black holes in our universe.”


Janna Levin’s Theory of Doing Everything

The astrophysicist, conceptual writer and host of standing-room-only scientific soirees at a repurposed factory in Brooklyn sees science as a powerful force in culture.


After Black Holes Collide, a Puzzling Flash

A satellite spotted a burst of light just as gravitational waves rolled in from the collision of two black holes. Was the flash a cosmic coincidence, or do astrophysicists need to rethink what black holes can do?


From Einstein’s Theory to Gravity’s Chirp

The path from a revolutionary set of equations to the detection of gravitational waves was strewn with obstacles and controversy, explains the physicist Daniel Kennefick — and the struggle continues.


Gravitational Waves Discovered at Long Last

Ripples in space-time have been detected a century after Einstein predicted them, launching a new era in astronomy.


The Fuzzball Fix for a Black Hole Paradox

By replacing black holes with fuzzballs — dense, star-like objects from string theory — researchers think they can avoid some knotty paradoxes at the edge of physics.

The Quantum Fabric of Space-Time

How Quantum Pairs Stitch Space-Time

New tools may reveal how quantum information builds the structure of space.