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Falling light trails

Physics

Free-fall experiment could test if gravity is a quantum force

The effort to reconcile general relativity with quantum mechanics always hits one snag: gravity. An experiment could finally tell us if it is a quantum force

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gravity

Physics

Gravity may be created by strange flashes in the quantum realm

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Black hole

Space

Quantum effects cloak impossible singularities with black holes

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McGaugh

Physics

How dark matter lost its shine for me

Features

Gravity artwork

Physics

Rules of attraction: Why it's time to rethink how gravity works

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string artwork

Physics

The string-loop theory that might finally untangle the universe

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pulsar

Physics

Fuzzy pulsars orbiting black holes could unmask quantum gravity

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floating man

Physics

Antigravity: Discovering if antimatter falls upwards

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Colourful lines of light against a black background skirt around a marble

Space

Gravity may have chased light in the early universe

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universe

Physics

The world in 2076: The theory of everything is here – we think

An inspirational leap could unify quantum gravity and general relativity – but with physicists still struggling, baby steps forward might be more likely

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Physics

Classic quantum experiment could conceal theory of everything

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Physics

You can touch the heart of physics without doing the hard bits

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Space

Gravitational waves: Your cheat sheet on the find of the decade

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Physics

That's odd: Why is gravity so weak?

Features