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gravity

A white wave on a black background.
quantum physics

Massive Black Holes Shown to Act Like Quantum Particles

By Charlie Wood
March 29, 2022
Read Later

Physicists are using quantum math to understand what happens when black holes collide. In a surprise, they’ve shown that a single particle can describe a collision’s entire gravitational wave.

Q&A

In Search of Cracks in Albert Einstein’s Theory of Gravity

By Thomas Lewton
February 23, 2022
Read Later

Celia Escamilla-Rivera is combining large data sets with supercomputers to test general relativity against its little-known competitors.

An illustration of Isaa Newton looking at a pair of falling apples.a
quantum gravity

How Gravity Is a Double Copy of Other Forces

By Charlie Wood
May 4, 2021
Read Later

An enigmatic connection between the forces of nature is allowing physicists to explore gravity’s quantum side.

An illustration of an airplane with its contrails coming out in front of it.
quantum gravity

Quantum Mischief Rewrites the Laws of Cause and Effect

By Natalie Wolchover
March 11, 2021
Read Later

Spurred on by quantum experiments that scramble the ordering of causes and their effects, some physicists are figuring out how to abandon causality altogether.

2020 in Review

The Year in Physics

By Michael Moyer
December 23, 2020
Read Later

Featuring paradoxical black holes, room-temperature superconductors and a new escape from the prison of time.

Distorted galaxies
Abstractions blog

A New Cosmic Tension: The Universe Might Be Too Thin

By Charlie Wood
September 8, 2020
Read Later

Cosmologists have concluded that the universe doesn’t appear to clump as much as it should. Could both of cosmology’s big puzzles share a single fix?

Claudia de Rham portrait
Q&A

The Physicist Who Slayed Gravity’s Ghosts

By Thomas Lewton
August 18, 2020
Read Later

Claudia de Rham showed how theories of “massive gravity” could potentially get rid of the need for dark energy.

An apple being jostled by gravitons
gravitational waves

How the Bits of Quantum Gravity Can Buzz

By Thomas Lewton
July 23, 2020
Read Later

New calculations show how hypothetical particles called gravitons would give rise to a special kind of noise.

A falling apple.
Abstractions blog

Why Gravity Is Not Like the Other Forces

By Natalie Wolchover
June 15, 2020
Read Later

We asked four physicists why gravity stands out among the forces of nature. We got four different answers.


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