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general relativity

Illustration of a supermassive black hole

Space

Some planets may orbit a supermassive black hole instead of a star

Planets normally form gradually from the disk of dust around a star. But the same thing could happen around black holes, forming thousands of super heavy planets

News

Impression of a black hole merger

Space

Black hole that 'rings' like a bell shows Einstein was right

News

artwork

Physics

Bye bye space-time: is it time to free physics from Einstein’s legacy?

Leader

Two black holes

Space

Puzzling signals seen by LIGO may be gravitational wave split in two

News

quantum artwork

Physics

Quantum weirdness isn't real – we've just got space and time all wrong

Features

Peter van Nieuwenhuizen

Physics

Physicists who came up with supergravity win $3m Breakthrough Prize

News

Is reality real? How evolution blinds us to the truth about the world

Physics

Is reality real? How evolution blinds us to the truth about the world

Features

Black hole swallows matter

Space

Star hurtling around a giant black hole proves Einstein right - again

News

Welcome to the 5th dimension: Our universe's radical new fate

Physics

Welcome to the 5th dimension: Our universe's radical new fate

Features

Special relativity

Definition

Special relativity

Einstein’s theory of how motion warps space and time

Definition

Dark energy

Definition

Cosmic inflation

Definition

String theory

Physics

The time paradox: How your brain creates the fourth dimension

Features

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