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Gravitational waves: Monster black hole merger detected

JacksinPA

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https://www.bbc.com/news/science-environment-46428010

Gravitational waves have been picked up from the biggest black hole merger yet detected.

Scientists say their laser labs sensed the ripples in space-time emanating from this gargantuan collision on 29 July 2017.

The event saw two holes, weighing more than 50 and 34 times the mass of our Sun, uniting to produce a single object over 80 times the mass of our star.

It happened at least five billion light-years from Earth.
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Fascinating development in astrophysics. I'm intrigued by their ability to detect gravitational waves from such a huge distance.

The existence of these waves was postulated by Einstein in 1916.

See https://en.wikipedia.org/wiki/Gravitational-wave_observatory
https://en.wikipedia.org/wiki/LIGO

The detection method is called laser interferometry.
 

MovingPictures

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It will be interesting to see what this development will do to models of the early universe, since so many of them predict specific gravity wave patterns.
 

JacksinPA

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It will be interesting to see what this development will do to models of the early universe, since so many of them predict specific gravity wave patterns.

Yes. At 5 billion light years we're getting close to the Big Bang. The Universe is a busy place.
 
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