6 years ago
Monster black hole merger detected
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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