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cosmology

particle physics

A Deepening Crisis Forces Physicists to Rethink Structure of Nature’s Laws

By Natalie Wolchover
March 1, 2022
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For three decades, researchers hunted in vain for new elementary particles that would have explained why nature looks the way it does. As physicists confront that failure, they’re reexamining a longstanding assumption: that big stuff consists of smaller stuff.

astronomy

Four Years On, New Experiment Sees No Sign of ‘Cosmic Dawn’

By Ben Brubaker
February 28, 2022
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When astronomers tried to confirm a signal from the birth of the first stars after the Big Bang, they saw nothing.

Q&A

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

By Thomas Lewton
February 23, 2022
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Celia Escamilla-Rivera is combining large data sets with supercomputers to test general relativity against its little-known competitors.

Video that zooms out from a close-up of a few simulated galaxies to a panoramic view of many different cube-shaped universes.
astrophysics

Any Single Galaxy Reveals the Composition of an Entire Universe

By Charlie Wood
January 20, 2022
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In computer simulations of possible universes, researchers have discovered that a neural network can infer the amount of matter in a whole universe by studying just one of its galaxies.

cosmology

Cosmologists Parry Attacks on the Vaunted Cosmological Principle

By Charlie Wood
December 13, 2021
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A central pillar of cosmology — the universe is the same everywhere and in all directions — is surviving a storm of possible evidence against it.

Collage illustration of the JWST
astrophysics

The Webb Space Telescope Will Rewrite Cosmic History. If It Works.

By Natalie Wolchover
December 3, 2021
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The James Webb Space Telescope has the potential to rewrite the history of the cosmos and reshape humanity’s position within it. But first, a lot of things have to work just right.

Galaxies in triangular formations expanding.
cosmology

Laws of Logic Lead to New Restrictions on the Big Bang

By Charlie Wood
November 10, 2021
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Physicists are translating commonsense principles into strict mathematical constraints on how our universe must have behaved at the beginning of time.

Quantized Columns

How Steven Weinberg Transformed Physics and Physicists

By Nima Arkani-Hamed
August 11, 2021
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When Steven Weinberg died last month, the world lost one of its most profound thinkers.

Black holes on a blue swirly background.
Abstractions blog

Growing Inventory of Black Holes Offers a Radical Probe of the Cosmos

By Thomas Lewton
February 17, 2021
Read Later

One black hole is nice, but astrophysicists can do a lot more science with 50 of them.


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