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Space

The problem of cosmic inflation and how to solve it

One of the best-performing models in cosmology is also one with the least physical rationale behind it. Columnist Leah Crane says this leaves us with a puzzle that could make or break physics as we know it

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Space

The rise, the fall and the rebound of cyclic cosmology

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A once-fantastical collider could answer physics’ biggest mysteries

Physics

A once-fantastical collider could answer physics’ biggest mysteries

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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

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The bombshell results that demand a new theory of the universe

Space

The bombshell results that demand a new theory of the universe

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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

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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

As Elon Musk and Pete Hegseth talk about wanting to make Star Trek real, long-time fan Chanda Prescod-Weinstein says they've misconstrued the heart of the story

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The best new popular science books of February 2026

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

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