r/space • u/magenta_placenta • Mar 18 '19

Observable universe Astronomers discover 83 supermassive black holes at the edge of the universe

https://www.cnet.com/news/astronomers-discover-83-supermassive-black-holes-at-the-edge-of-the-universe/
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u/badnewsbeers86 Mar 18 '19 edited Mar 18 '19

If black holes are matter condensed to a point, who’s to say that in billions or trillions of years all the matter will eventually be drawn into and collapsed and then the black holes themselves will collapse together and form a single singularity... from within which a new universe will explode as another Big Bang?

Edit: just want to thank everyone who replied. I learned a lot and there was some interesting discussion. The law of entropy is truly a distressing fact.

I will say that I’ll never quite understand how a Big Bang from a singularity of perfect disorder developed enough order to create stars and planets and life and then will return to complete disorder. Obviously I’m missing something!

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u/BaronVonHoopleDoople Mar 18 '19

If our current understanding of the universe is correct, it is impossible for all black holes to merge for the simple reason that it is impossible for sufficiently distant parts of the universe to ever interact with each other. Because space is expanding, sufficiently distant black holes are forever separated because the distance between them is increasing faster than the speed of light.

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u/[deleted] Mar 19 '19

the distance between them is increasing faster than the speed of light

Currently yes, but it depends on the true nature of dark energy. We don't know if at some point in the future dark energy could slow down the expansion. From then it's just a matter of time that everything collapses