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Particle physics

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Fresh X-Rays Reveal a Universe as Clumpy as Cosmology Predicts

March 4, 2024

By mapping the largest structures in the universe in X-rays, cosmologists have found striking agreement with their standard theoretical model of how the universe evolves.

In a ‘Dark Dimension,’ Physicists Search for the Universe’s Missing Matter

February 1, 2024

An idea derived from string theory suggests that dark matter is hiding in a (relatively) large extra dimension. The theory makes testable predictions that physicists are investigating now.

A New Map of the Universe, Painted With Cosmic Neutrinos

June 29, 2023

Physicists finally know where at least some of these high-energy particles come from, which helps make the neutrinos useful for exploring fundamental physics.

A New Experiment Casts Doubt on the Leading Theory of the Nucleus

June 12, 2023

By measuring inflated helium nuclei, physicists have challenged our best understanding of the force that binds protons and neutrons.

Sparse Networks Come to the Aid of Big Physics

June 8, 2023

A novel type of neural network is helping physicists with the daunting challenge of data analysis.

Are There Reasons to Believe in a Multiverse?

May 17, 2023

Several areas of physics suggest reasons to think that unobservable universes with different natural laws could lie beyond ours. The theoretical physicist David Kaplan talks with Steven Strogatz about the mysteries that a multiverse would solve.

Physicists Create Elusive Particles That Remember Their Pasts

May 9, 2023

In two landmark experiments, researchers used quantum processors to engineer exotic particles that have captivated physicists for decades. The work is a step toward crash-proof quantum computers.

The Year in Physics

December 22, 2022

In a year filled with sweet new observations in astronomy and tantalizing breakthroughs in condensed matter physics, the brand-new space telescope takes the cake.

Crucial Computer Program for Particle Physics at Risk of Obsolescence

December 1, 2022

Maintenance of the software that’s used for the hardest physics calculations rests almost entirely with a retiree. The situation reveals the problematic incentive structure of academia.

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