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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

A simulation of the structure of the galaxy

Space

Reality guide: The essential laws of cosmology

Features

Ripples

Space

Reality guide: The essential laws of quantum physics

Features

A stream of information flowing down a screen

Space

Reality guide: Six radical ideas to change physics

Features

dark energy

Space

Dark energy must die – these rebel physicists can take it down

Features

Man having black bushy beard shaved

Physics

The impossible barber and other bizarre thought experiments

Features

Earth's core is two-and-a-half years younger than its crust

Earth

Earth's core is two-and-a-half years younger than its crust

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Red-tinted mirror suspended along with other objects

Physics

Gravitational wave hunters gear up to detect extreme black holes

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black holes

What will gravitational waves tell us about the universe?

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A gamma ray burst

Space

LIGO's black holes may have lived and died inside a huge star

The merging black holes that led to the discovery of gravitational waves may have been enveloped inside a gigantic star, which gave off a burst of gamma rays

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Space

Exclusive: Einstein reacts to discovery of gravitational waves

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Space

Revolution in physics as gravitational waves seen for first time

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Space

Einstein’s last theory confirmed: A guide to gravitational waves

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Physics

Latest rumour of gravitational waves is probably true this time

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