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

The End of Theoretical Physics as We Know It

By Sabine Hossenfelder
August 27, 2018
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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

By Charlie Wood
August 22, 2018
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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"
astrophysics

Star-Swallowing Black Holes Reveal Secrets in Exotic Light Shows

By Joshua Sokol
August 8, 2018
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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.
cosmology

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

By Natalie Wolchover
June 12, 2018
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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.

Illustration of a black hole with a Cauchy horizon
general relativity

Mathematicians Disprove Conjecture Made to Save Black Holes

By Kevin Hartnett
May 17, 2018
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Mathematicians have disproved the strong cosmic censorship conjecture. Their work answers one of the most important questions in the study of general relativity and changes the way we think about space-time.

Photo of Large Magellan Cloud rotating clockwise.
Abstractions blog

What Astronomers Are Learning From Gaia’s New Milky Way Map

By Natalie Wolchover
May 8, 2018
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A roundup of some of the most important discoveries gleaned so far from the Gaia space observatory’s new map of the galaxy.

520px illustration for black hole echoes
Quantized Columns

Black Hole Echoes Would Reveal Break With Einstein’s Theory

By Sabine Hossenfelder
March 22, 2018
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Gravitational waves have opened up new ways to test the properties of black holes — and Einstein’s theory of gravity along with them.

Photo of Stephen Hawking in 1979 in Princeton, New Jersey.
Abstractions blog

Why Stephen Hawking’s Black Hole Puzzle Keeps Puzzling

By Jennifer Ouellette
March 14, 2018
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The renowned British physicist, who died at 76, left behind a riddle that could eventually lead his successors to the theory of quantum gravity.

Photograph of Albert Einstein in his office at the University of Berlin, published in the USA in 1920.
Abstractions blog

How Einstein Lost His Bearings, and With Them, General Relativity

By Kevin Hartnett
March 14, 2018
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By 1913, Albert Einstein had nearly completed general relativity. But a simple mistake set him on a tortured, two-year reconsideration of his theory. Today, mathematicians still grapple with the issues he confronted.


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