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4/7/2016 1:58:45 AM
4
Galaxy's are just giant black holes, so won't earth eventually be destroyed by the one in our galaxy?[spoiler]our star will probably be dead by then, but what about the stars close to the center?[/spoiler]
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Edited by The Cellar Door: 4/7/2016 2:39:12 AMThere is a super massive black hole at the center, yes, but due to how big they are the tidal forces would be a lot smaller at the event horizon than say a regular black hole. This means that while normal black holes are horrible at actually eating things, super massive black holes are even worse. The threat of Sag A (milky way's SMBH) is realistically non-existent due to how bad these black holes are at eating.
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Edited by Lifts Her Tail: 4/7/2016 2:42:25 AMNo. Thats like being worried we will fall into the sun (if the sun stayed the same size forever)
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The sun won't stay the same size forever, and neither will our galaxy. In fact, there is a small elliptical galaxy in the process of colliding with the other side of our galaxy. Our galaxy could potentially absorb this galaxy. But not all galaxies have a supermassive blackhole at the center, only spiral galaxies and some irregular galaxies that are the product of galactic collisions. Also supermassive black holes are currently only a theory for what is at the center of our galaxy and those like it. But if there were a supermassive blackhole at the center of our galaxy, eventually if time permitted, it could pull everything in our galaxy into it's singularity. We're in the schwarzchild radius of that supermassive blackhole.
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Oh I know. Im assuming that Dark is wondering if we will ever spiral into the Black Hole at the center of the galaxy. I just used the earth sun system as a smaller scale example. Now thinking back assuming is not the right word there. There fixed. Also what does the schwarzchild radius have to do with us falling into the super massive black hole at the center of our galaxy? All that states is if you crunched a bunch of mass into a ball how small would it have to be for its escape velocity to equal C.
