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New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Physics

Physicists find ultimate limit for how accurate clocks can be

A fundamental trade-off between the resolution of a clock and its accuracy could have important implications for quantum computers, which must measure short timescales accurately

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Illustration of an ultra-high-energy cosmic ray hitting Earth

Physics

A mysterious, incredibly energetic cosmic ray has smashed into Earth

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$Abstract fractal illustration$

Physics

Lasers fired at crystals could uncover quantum nature of the vacuum

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soap bubble

Physics

Tiny lasers can be made from soap bubbles

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The international space station

Physics

Ultracold atoms in space will let us stress test Einstein's relativity

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A woman receiving radiation therapy for breast cancer

Physics

First practical use for nuclear fusion could help cancer treatment

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An artist's impression of three merging black holes

Physics

Why the quantum universe is weirder than you think

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vortices in a Martini glass

Physics

Physicists have invented a new way to shake a martini

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waves in the ocean

Physics

Bubble collisions underwater may create tiny droplets in sea spray

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B9XGR3 Explosion - shining - big bang

Physics

Our sketchy understanding of the big bang is ripe for reimagining

Cosmologists have come to see the early universe as a whole series of transformations, or phase transitions, opening the door to intriguing possibilities for what really happened during the big bang

Leader

Physics

A second big bang? The radical idea rewriting dark matter’s origins

Features

Physics

Superconductor hopes dashed after journal retracts ‘red matter’ study

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Physics

Quantum batteries could charge better by breaking rules of causality

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Physics

World's most sensitive force sensor measures in ‘quectonewtons’

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