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Physics

The stunning physics of Project Hail Mary go back to ancient China

How do you portray momentum in space accurately? Columnist Chanda Prescod-Weinstein takes a look at the origins of our understanding of motion, which runs from Isaac Newton back to the Zhou dynasty a millennia ago

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Astronaut running during sunset at a remote planet

Health

How working out like an astronaut can reduce back pain and slow ageing

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The experiments that could finally explain gravity

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The experiments that could finally explain gravity

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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

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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

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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

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Space

Lumpy ‘caterpillar wormholes’ may connect entangled black holes

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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

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Physics

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

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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

In 1992, three physicists began an argument about how many numbers we need to fully describe the universe. Their surprisingly long-running quarrel takes us to the heart of what’s truly real

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Physics

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

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Physics

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

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Physics

The radical idea that space-time remembers could upend cosmology

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Physics

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

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