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gravity

Does gravity create reality? A shocking path to a theory of everything

Physics

Does gravity create reality? A shocking path to a theory of everything

A rewrite of quantum mechanics that includes the force of gravity could finally achieve one of physicists’ biggest goals and reveal the ultimate fuzziness of time

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Space

The problem of cosmic inflation and how to solve it

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NIST scientists Stephan Schlamminger (left) and Vincent Lee examine the torsion balance they used to measure the gravitational constant, big G

Physics

Gravity's strength measured more reliably than ever before

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Physics

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

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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

Features

The experiments that could finally explain gravity

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The experiments that could finally explain gravity

Video

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

A mathematical model suggests that when a pair of black holes gets quantum entangled, this can give rise to a lumpy space-time tunnel between them

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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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Physics

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

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Physics

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

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