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A black hole swallowing a star

Space

Reality guide: Six problems physics can't explain

From the dark energy ripping the cosmos apart to the part consciousness plays in creating reality, quantum physics and cosmology retain many mysteries

Features

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Space

Reality guide: Six radical ideas to change physics

Features

Ripples

Space

Reality guide: The essential laws of quantum physics

Features

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Physics

Quantum teleportation over 7 kilometres of cables smashes record

News

cold fusion 1

Physics

Cold fusion: Science's most controversial technology is back

Features

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Physics

Cold fusion is better left out in the cold

Leader

A map showing an earthquake thought to be the result of a nuclear test in North Korea

Earth

North Korea’s largest nuclear test still lacks missile capacity

News

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Physics

Five particles that don't exist – yet could change our world

Features

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Physics

Lessons in reality from particles that don't exist

Features

Stars burning strangely make life in the multiverse more likely

Life

Stars burning strangely make life in the multiverse more likely

Supporters of the multiverse often cite a specific reaction in stars that seems tuned for life, making our universe improbable – but now there’s a new idea

News

Technology

Revealed: Google's plan for quantum computer supremacy

News

Humans

Metaphysics special: What is reality made of?

Features

Humans

Metaphysics special: What is the meaning of life?

Features

Humans

Metaphysics special: Do we have free will?

Features