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Impression of a black hole merger

Space

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

Astronomers have looked at the way a black hole 'rings' like a bell to test a prediction of Einstein’s general relativity. Turns out Einstein is still right

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Aerial view of LIGO's Livingston detector

Physics

Some physicists still doubt whether LIGO has seen gravitational waves

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Two black holes

Space

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

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Artist's impression of a neutron star and black hole

Physics

LIGO may have seen its first black hole and neutron star collision

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

General_relativity

Definition

General relativity

Black holes

Definition

Black holes

The secret of dark matter could be a particle the size of a planet

Physics

The secret of dark matter could be a particle the size of a planet

Features

Black hole-neutron star merger

Space

LIGO may have just spotted a black hole devouring a neutron star

News

One of LIGO's gravitational wave detectors

Space

LIGO has spotted another gravitational wave just after turning back on

One week after LIGO switched back on, it has already detected the gravitational waves from another pair of merging black holes, marking the beginning of a new era of gravitational wave astronomy

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Physics

The 5 biggest physics questions that LIGO's reboot could soon answer

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Physics

2019 Preview: Gravitational waves will be discovered every few weeks

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Space

LIGO found four more pairs of black holes, including the biggest yet

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Physics

Star smash-up is yet more evidence Einstein got it right about gravity

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