In the following article, it is suggested that black holes don't even exist, but rather they are black stars. Arguing from the point of constantly changing scientific theory would make me dizzy, and not so confident of my condemnation of others...
http://space.newscientist.com/article/dn12089-do-black-holes-really-exist.html
And they say Christians have faith when we believe that God did it?
Whereas some have unshakable faith in the latest "scientific" conjecture, er, theory, that may get disproved the next day...
We can actually produce the synchrotron radiation typically used as the indication of a 'black hole' on earth. However, because astronomers only accept gravity as the ruling force in the cosmos, relativistic gravitational objects are assumed whenever synchrotron radiation is detected in outer space.
It is probably just the signature of strong electric currents in plasma.
And yet they do. I guess there's one reliable constant in science.