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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

Features

Physics

The mystery of nuclear 'magic numbers' has finally been resolved

News

Physics

Backwards heat shows laws of thermodynamics may need a quantum update

News

Time crystals could be used to build accurate quantum clocks

Physics

Time crystals could be used to build accurate quantum clocks

News

Physics

Physicists warn of 'catastrophic' impact from UK science cuts

News

Technology

Fast-charging quantum battery built inside a quantum computer

News

Quantum simulation

Physics

Record-breaking quantum simulator could unlock new materials

News

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

Physics

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

Comment

Conceptual illustration of quantum fluctuations

Physics

The universe may be hiding a fundamentally unknowable quantum secret

News

Plastic bottle in a breaking wave

Physics

A remarkable book on quantum mechanics reveals a really big idea

Where is physics headed? No one knows for sure, but Beyond the Quantum by Antony Valentini is a striking new book that reminds us what a big idea really looks like, finds Jon Cartwright

Culture

Physics

Engaging look at friction shows how it keeps our world rubbing along

Culture

Technology

Most complex time crystal yet has been made inside a quantum computer

News

Physics

We have a new way to explain why we agree on the nature of reality

News

Physics

The edge of the quantum world just moved closer to our reality

News