Gravitational waves

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The gravitational wave signals detected by the twin LIGO stations

article: Einstein’s gravitational waves found at last


One hundred years after Albert Einstein predicted the existence of gravitational waves, scientists have finally spotted these elusive ripples in space-time. In a highly anticipated announcement, physicists with the Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO) revealed on 11 February that their twin detectors have heard the gravitational ‘ringing’ produced by the collision of two black holes about 400 megaparsecs (1.3 billion light-years) from Earth.

Access the news article online. For more on gravitational waves, visit our Special for features, video and coverage of the unfolding story.

 

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 GRAVITATIONAL WAVES

Einstein published the first papers predicting the existence of gravitational waves — ripples in the fabric of space-time — almost a century ago. Physicists at the recently upgraded Laser Interferometer Gravitational-Wave Observatory (LIGO) have announced that they have measured these cosmic deformations, opening up a new field of gravitational-wave astronomy. Discover Nature’s coverage of the unfolding story and other gravitational-wave experiments, as well as everything you ever wanted to know about Einstein’s general theory of relativity.

Image credit: MPI/Gravitational Physics/ITP Frankfurt/ZI Berlin


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