Astronomers watch black holes as galaxies collide

Astronomers have detected enormous black holes as multiple pairs of galaxies collide and merge into larger galaxies.
Using powerful telescopes to see through the galaxies' thick walls of gas and dust surrounding their cores, the academics have managed - for the first time - to observe supermassive black holes fall into each other and coalesce into an even more giant black hole.Black holes are areas of space-time which are so dense that nothing - whether matter or energy - can escape them.Astrophysicists currently believe there are about 10,000 black holes at the centre of our own galaxy, the Milky Way, all of which surround a supermassive black hole at its core.A team led by research scientist Michael Koss surveyed hundreds of nearby galaxies using existing imagery and published their findings in the journal Nature."Seeing the pairs of merging galaxy nuclei associated with these huge black holes so close together was pretty amazing," said Mr Koss said."In our study, we see two galaxy nuclei right when the images were taken. You can't argue with it; it's a very 'clean' result, which doesn't rely on interpretation.":: Supercomputer provides black hole breakthrough
Astronomers watch black holes as galaxies collide

Using supercomputer simulations, astronomers have discovered more about how black holes interact with space-time
The high-resolution images have provided the scientists with a close-up of galactic collisions, something which is believed to have been more frequent in the early universe.
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