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Physics

In the quantum realm, cause doesn’t necessarily come before effect

In everyday life, causes always precede effects. But new experiments suggests that no such restriction applies in the quantum world

Features

Time travel and black holes: The weird promise of Einstein’s universe

Video

Time travel and black holes: The weird promise of Einstein’s universe

Video

Chamkaur Ghag

Video

The hunt for dark matter: Solving the universe's big questions

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Physics

Einstein killed the aether. Now the idea is back to save relativity

Features

Illustration of a supermassive black hole

Space

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

News

Impression of a black hole merger

Space

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

News

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Physics

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

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Two black holes

Space

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

News

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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

Supergravity is an idea that could unite general relativity with quantum mechanics, and the three physicists who formulated it have now won a $3 million prize for their work

News

Physics

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

Features

Space

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

News

Physics

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

Features

Definition

Special relativity