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Related: About this forumWe Finally Know How Black Holes Produce The Most Brilliant Light in The Universe
https://www.sciencealert.com/we-finally-know-how-black-holes-produce-the-most-brilliant-light-in-the-universe/ampFor something that emits no light that we can detect, black holes just love to cloak themselves in radiance.
Some of the brightest light in the Universe comes from supermassive black holes, in fact. Well, not actually the black holes themselves; it's the material around them as they actively slurp down vast amounts of matter from their immediate surroundings.
Among the brightest of these maelstroms of swirling hot material are galaxies known as blazars. Not only do they glow with the heat of a swirling coat, but they also channel material into 'blazing' beams that zoom through the cosmos, shedding electromagnetic radiation at energies that are hard to fathom.
Scientists have finally figured out the mechanism producing the incredible high-energy light that reaches us from billions of years ago: Shocks in the black hole's jets that boost the speed of particles to mind-blowing velocities.
Much more at link.
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We Finally Know How Black Holes Produce The Most Brilliant Light in The Universe (Original Post)
SheltieLover
Nov 2022
OP
at140
(6,132 posts)1. I am so releived those nasty black holes are
very very far away from earthlings. Our own sun will gobble us up in 5 Billion years by morphing into a red giant.
packman
(16,296 posts)3. And we still wouldn't have seen Trump tax returns
spike jones
(1,777 posts)4. But Cher will still be looking good. n/t
packman
(16,296 posts)5. And Willie Nelson will still be doing Farm Aid
erronis
(16,831 posts)2. One of those beams as a direct hit on this planet might be a sight not to be seen.
And there are millions (yottas?) of these black holes that are consuming matter and emitting various interesting and strong after-effects.
The chance that we will be swept by one or more is not insignificant. It will probably be more spectacular than just the Northern Lights. Might be more than our eyes or our cameras or our bodies can absorb. But enjoy if you can!