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Are we living in a simulation? This experiment could tell us

Physics

Are we living in a simulation? This experiment could tell us

The idea that we might be living in a simulated reality has worried us for centuries. Now physicists have found some tantalising clues – and devised an experiment that might reveal the truth

Features

An artwork made my layering many paper cutouts, showing an astronaut near a black hole. Within the black hole are colourful swirls, stars and specks

Physics

Black hole entropy hints at a surprising truth about our universe

Features

A new understanding of causality could fix quantum theory’s fatal flaw

Physics

A new understanding of causality could fix quantum theory’s fatal flaw

Features

Space

Lumpy ‘caterpillar wormholes’ may connect entangled black holes

News

No space, no time, no particles: A radical vision of quantum reality

Physics

No space, no time, no particles: A radical vision of quantum reality

Features

Physics

Could gravity produce quantum entanglement if it’s not fully quantum?

News

The 30-year fight over how many numbers we need to describe reality

Physics

The 30-year fight over how many numbers we need to describe reality

Features

Chaotic streams of energy appear to slice through space

Physics

Is gravity a new type of force that arises from cosmic entropy?

Features

Physics

Laws of quantum physics may rule out a universe that came before ours

News

Astronaut Scott Kelly posted this photo of an aurora taken from the International Space Station to Twitter on August 15, 2015

Physics

The radical idea that space-time remembers could upend cosmology

There are new hints that the fabric of space-time may be made of "memory cells" that record the whole history of the universe. If true, it could explain the nature of dark matter and much more

Features

Physics

Could we build space-time computers that run on gravity?

News

Physics

How dark energy findings may inspire a new generation of physics nerds

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Physics

The bold attempt to solve the toughest mystery at the heart of physics

Features

Physics

Why physicists keep trying to get rid of space-time entirely

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