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LIGO gravitational wave detector research

LIGO gravitational wave detector research

C028/8249

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Credit

CALTECH / MIT / LIGO LAB / SCIENCE PHOTO LIBRARY CALTECH / MIT / LIGO LAB / SCIENCE PHOTO LIBRARY

Restrictions:

Editorial use only.

Caption

LIGO gravitational wave detector research. Researchers in the control room at the Hanford site for the Laser Interferometer Gravitational-Wave Observatory (LIGO). LIGO compares measurements between two detector sites 3000 kilometres apart in Hanford, Washington and Livingston, Louisiana, USA. Each site is an L-shaped ultra-high vacuum system, four kilometres long on each side. Laser interferometers are used to look for small changes caused by gravitational waves. LIGO has been operating since 2002, with an advanced upgrade (aLIGO) operating since 2015. On 11th February 2016 it was announced that gravitational waves had been detected by LIGO. The signal was detected on 14th September 2015, and was the result of two black holes colliding 1.3 billion years ago. Photographed at the Hanford site on 26 March 2015.

Release details

Model release not available. Property release not required.

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