Scientists have detected gravitational waves from the collision, which led to the two black holes forming a new, huge black hole 80 times larger than our sun.
It was one of four surveys announced this week, using data from the Advanced Gravitational Wave Observatory (LIGO) that detects gravitational waves, small ripples in space and time.
Professor Susan Scott of the Australian National University (ANU) said that the event occurred nine billion light years away (and nine billion years ago).
The ripples were taken over by the merger on 29 July 2017.
"This event has also had black holes that rotate the fastest of all the mergers observed so far – it is also the farthest fusion observed," said Professor Scott.
The other three black hole collisions were detected between 9 and 23 August 2017, they were between three and six billion light years away and had variable dimensions for the resulting black holes 56 to 66 times larger than our Sun.
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"They were from four different systems of black binary holes that shattered and radiated strong gravitational waves in space," said Professor Scott.
"These black hole collisions detections greatly improve our understanding of how many black hole binary systems there are in the universe, as well as the range of their masses and the speed with which black holes rotate during a fusion."
Researchers are planning to continuously improve gravitational wave detectors so that cataclysmic events can be detected much further away in space, one day hoping to return to the start of time immediately after the Big Bang, which can not be done with the light.
After the initial analyzes were completed, the scientists recalibrated and cleaned the collected data.