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The rise, the fall and the rebound of cyclic cosmology

Cyclic cosmology, or the big bounce, is the idea that the universe will eventually crunch back together and then go through another big bang. Columnist Leah Crane finds that, appropriately, it’s coming back

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A once-fantastical collider could answer physics’ biggest mysteries

Physics

A once-fantastical collider could answer physics’ biggest mysteries

Features

Space

What does it mean if the universe has extra dimensions?

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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

Features

The bombshell results that demand a new theory of the universe

Space

The bombshell results that demand a new theory of the universe

Features

Crisis in cosmology: If we’ve got dark energy wrong, what could it be?

Space

Crisis in cosmology: If we’ve got dark energy wrong, what could it be?

Features

We’ve glimpsed before the big bang and it’s not what we expected

Space

We’ve glimpsed before the big bang and it’s not what we expected

Features

Space

Can we ever know the shape of the universe?

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HDB7KX STAR TREK: DEEP SPACE NINE, Avery Brooks, Nana Visitor, Rene Auberjonois, 1993-1999,

Space

Why Elon Musk has misunderstood the point of Star Trek

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The best new popular science books of February 2026

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The best new popular science books of February 2026

Readers are spoiled for choice when it comes to popular science reading this month, with new titles by major names including Maggie Aderin and Michael Pollan

Culture

Space

The first quantum fluctuations set into motion a huge cosmic mystery

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Space

Comets were on fire this year – for better or worse

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Physics

Are we living in a simulation? This experiment could tell us

Features

Space

A distant galaxy is being strangled by the cosmic web

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