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Physics

First working nuclear clock heralds a new era in timekeeping

A clock based on radioactive thorium atoms realises a long-held ambition, demonstrating a technology that could eventually beat the accuracy of today’s best atomic clocks

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Physics

Toy universe shows that time could be a quantum illusion

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Space

How the electromagnetic spectrum opened our eyes to the universe

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The best new science-fiction books of June 2026

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The best new science-fiction books of June 2026

Culture

Physics

First quantum grandfather clock could probe where gravity comes from

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Space

The hidden pockets of the universe where the future can cause the past

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Physics

Quantum batteries could be charged by reversing time

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UNITED STATES - NOVEMBER 26: Formally-attired audience sporting 3D glasses during opening night screening of film

Physics

Forget the multiverse. In the pluriverse, we create reality together

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Person looking up at starry night at Spiral Jetty, USA. Provider: Alamy Stock Photo Source: www.alamy.com Copyright: Celestine Dagli/Alamy

Physics

Would aliens do physics, or is science a human invention?

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Fractal conceptual illustration of supersymmetry or superstrings. Supersymmetry (SUSY) is a particle physics theory that proposes a type of spacetime symmetry relating two basic classes of elementary particles: bosons, which have an integer-valued 'spin', and fermions, which have a half-integer spin. If supersymmetry is a true symmetry of nature, it would explain many mysterious features of particle physics and would help solve paradoxes such as the cosmological constant problem. There is only indirect evidence for the existence of supersymmetry, primarily in the form of evidence for gauge coupling unification. Direct confirmation would entail production of superpartners at collider experiments, such as at the Large Hadron Collider.

Space

A crisis in cosmology may mean hidden dimensions really exist

Physicists are scrambling to understand why dark energy is weakening. In a surprising twist, we must now reconsider the possibility that our reality contains extra dimensions

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Physics

The weird rules of temperature get even stranger in the quantum realm

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Physics

The daring idea that time is an illusion and how we could prove it

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Mind

How rethinking your relationship with time could give you more of it

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Physics

How 3 imaginary physics demons tore up the laws of nature

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