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black holes

astrophysics

Black Hole Image Reveals the Beast Inside the Milky Way’s Heart

By Jonathan O'Callaghan
May 12, 2022
Read Later

In 2019, the Event Horizon Telescope released a historic image of a supermassive black hole in another galaxy. The follow-up — an image of Sagittarius A* — shows it shimmering at the center of our own.

A man sits at a table in the middle of a wood-paneled library, perusing a large book.
Q&A

Pondering the Bits That Build Space-Time and Brains

By Charlie Wood
April 20, 2022
Read Later

Vijay Balasubramanian investigates whether the fabric of the universe might be built from information, and what it means that physicists can even ask such a question.

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.

A grid of 66 galaxies.
astrophysics

Tiny Galaxies Reveal Secrets of Supermassive Black Holes

By Charlie Wood
March 14, 2022
Read Later

Dwarf galaxies weren’t supposed to have big black holes. Their surprise discovery has revealed clues about how the universe’s biggest black holes could have formed.

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.

Q&A

This Physicist Discovered an Escape From Hawking’s Black Hole Paradox

By Natalie Wolchover
August 23, 2021
Read Later

The five-decade-old paradox — long thought key to linking quantum theory with Einstein’s theory of gravity — is falling to a new generation of thinkers. Netta Engelhardt is leading the way.

An animation of a glowing conical beam
astrophysics

Physicists Identify the Engine Powering Black Hole Energy Beams

By Natalie Wolchover
May 20, 2021
Read Later

Supermassive black holes emit jets of white-hot plasma that stretch thousands of light-years across the cosmos. For the first time, researchers have identified what’s creating these jets.

A looping image of two black holes orbiting one another, with the second one smaller than the first.
mathematical physics

New Black Hole Math Closes Cosmic Blind Spot

By Steve Nadis
May 13, 2021
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A mathematical shortcut for analyzing black hole collisions works even in cases where it shouldn’t. As astronomers use it to search for new classes of hidden black holes, others wonder: Why?

A three-panel illustration of a starburst galaxy, an active galactic nucleus and a tidal disruption event.
astrophysics

Cosmic Map of Ultrahigh-Energy Particles Points to Long-Hidden Treasures

By Natalie Wolchover
April 27, 2021
Read Later

Ultrahigh-energy cosmic rays twist and turn on their way to Earth, which has made it nearly impossible to identify the colossal monsters that create them.


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