Black Holes

[munky99999]

Ok so Stars that go suprnova, and explode to become Black holes, Do the black holes continue to rotate around the galaxy? or do they just die in space, and wait for other stars to come by?

[Chi Meson]

After a massive star collapses into itself, all of its mass is still there, and that mass continues to have the same motion around whatever it was revolving around.

[munky99999]

ok so teachnically then we don't have to worry about black holes from other galaxies, unless our galaxy gets close to another one.

Then if we say have 10,000 or so black holes just within our galaxy and they are still rotating around just as the star before hand was, what is the best chance of Earth even coming near a black hole?

[mathman]

I can't give a precise answer, but the problem is really no different from the solar system getting too close to a massive star. The only difference is that we could see it coming, but couldn't do anything about it.

[Nenad]

wait, isnt a suprnova a star that collapses in on itself and the explodes from all of the pressure? I thought novas did not form black holes.

[mathman]

Whether or not a dead star becomes a black hole is simply a matter of size. It is very likely that it had been a supernova in its dying stages.

[gunblaze]

Then if we say have 10,000 or so black holes just within our galaxy and they are still rotating around just as the star before hand was, what is the best chance of Earth even coming near a black hole?

Well...not a very likely situation.

Almost all the stars are a few light years away from us, if we were to say a star near to us go bust (undergoes supernova). For it to pass through earth will be very unlikely...not to say affect Earth. Unless supernova takes place in the sun then we will be in trouble!