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Thanks for replying, that’s very helpful.
Einstein-Rosen bridge thing which (I think) doesn't have a singularity, just a nice smooth "tube" in spacetime
This might work, I’ll do more research, thanks for suggesting it.
Bad Guys created black holes so they could steal our matter
Good to know the idea is out there. I’d love to create some deja entendu but haven’t found any other source material to build on.
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Just saw 2 satellites in about 5 mins in the worse light pollution (London).
I remember when it was exciting to see a satellite cross our skies. We'd wait hours and probably still have to wait another sitting.
Now...
Still tickles me
But I'd love to see the ISS.
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Haven't you seen it? Takes very little planning...
Rub it in.... I've seen your specs...
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The James D site has tickled me! Plocks you on your street!
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What we looking at?
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M31, Andromeda Galaxy with it's dwarf companion m33 above.
The blob at the centre contains billions of stars, the milky extended shape a few billion more in a disc shape.
It's coming towards us, to mix and distort us and them beyond recognition. Thought it still 100M lightyears away. So the light in this image left Andromeda around the time dinosaurs were prancing about on Earth.
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So cool
So so cool
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It's coming towards us, to mix and distort us and them beyond recognition. Thought it still 100M lightyears away. So the light in this image left Andromeda around the time dinosaurs were prancing about on Earth.
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Why sorry?!
Literally the thread for it 😂
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That the seven sisters? I used to be able to see them with the my naked eye... When I had eyesight of a young man/child.
Eseman
ChainBreaker
606
JurekB
adroit
Ludd
Sam
Backstop
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Stars / Astronomy / Astrophotography / Telescopes / Astro
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The Schwarzchild radius is the radius to the event horizon, which increases with mass. The singularity (if it exists) has no size exactly- it's infinitely small and dense.
(This is just what GR equations say, we obviously don't and probably cannot ever know what's really beyond the event horizon. I would guess most physicists probably think you can't have infinities in physical quantities i.e. no singularity.)
I barely studied GR and certainly not white holes I'm afraid so not much help here. Dark matter is just matter that we can't currently detect so probably fair to assume it acts in the same way as everything else does. I had a read of the Wikipedia page on white holes and couldn't figure out whether or not mass/energy would pass straight through or get mashed. Probably safest to assume everything gets mashed with a singularity but you could instead go for the Einstein-Rosen bridge thing which (I think) doesn't have a singularity, just a nice smooth "tube" in spacetime connecting two bits together, as opposed to the infinite spike of a singularity.
Has it been written about? - not sure but I have an extremely vague memory of reading someone's idea (could be a book, comment, tweet, no idea) that Bad Guys created black holes so they could steal our matter because they didn't have any. Like after heat death or something.