51��

Skip to content

Space

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

Inside some very special black holes, there may be a boundary called a Cauchy horizon. Columnist Leah Crane explores the place beyond which physics breaks and anything is possible

Comment

Physics

Quantum batteries could be charged by reversing time

51��

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

Features

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?

Comment

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 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

A collage of analog clocks against a black background. Some are broken in half

Physics

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

Features

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

Mind

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

Features

How 3 imaginary physics demons tore up the laws of nature

Physics

How 3 imaginary physics demons tore up the laws of nature

Features

Physics

Why quantum mechanics says the past isn’t real

The famous double-slit experiment brings into question the very nature of matter. Its cousin, the quantum eraser experiment, makes us question the very existence of time – and how much we can manipulate it

Comment

Physics

Black hole entropy hints at a surprising truth about our universe

Features

Physics

The fascinating story of the ultimate cosmic law

Comment

Physics

Ultracold atoms could test relativity in the quantum realm

51��

Space

Is the universe really one big black hole?

Comment