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# Physics

## Latest Articles

### Cosmologists Parry Attacks on the Vaunted Cosmological Principle

A central pillar of cosmology — the universe is the same everywhere and in all directions — is surviving a storm of possible evidence against it.

### Gravitational Waves Should Permanently Distort Space-Time

The “gravitational memory effect” predicts that a passing gravitational wave should forever alter the structure of space-time. Physicists have linked the phenomenon to fundamental cosmic symmetries and a potential solution to the black hole information paradox.

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

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.

### Quantum Simulators Create a Totally New Phase of Matter

One of the first goals of quantum computing has been to recreate bizarre quantum systems that can’t be studied in an ordinary computer. A dark-horse quantum simulator has now done just that.

### The Algorithm That Lets Particle Physicists Count Higher Than Two

Through his encyclopedic study of the electron, an obscure figure named Stefano Laporta found a handle on the subatomic world’s fearsome complexity. His algorithm has swept the field.

### How Quantum Computers Will Correct Their Errors

Quantum bits are fussy and fragile. Useful quantum computers will need to use an error-correction technique like the one that was recently demonstrated on a real machine.

### A New Theory for Systems That Defy Newton’s Third Law

In nonreciprocal systems, where Newton’s third law falls apart, “exceptional points” are helping researchers understand phase transitions and possibly other phenomena.

### Laws of Logic Lead to New Restrictions on the Big Bang

Physicists are translating commonsense principles into strict mathematical constraints on how our universe must have behaved at the beginning of time.

### Researchers Revise Recipe for Building a Rocky Planet Like Earth

Over the past decade, researchers have completely rewritten the story of how gas giants such as Jupiter and Saturn form. They’re now debating whether the same process might hold for Earth.