Supercomputer clue to black holes,

[Castout]

Originally Posted by ReFaN

Well well smartguy, you just had to ruin my day, and i felt so good about myself for almost busting the black hole conspiracy.

In other words, you are probably right, or atleast the scientists working with this.

Doesn't matter same thing happened to me with below

Originally Posted by TLAM Strike

Dowly is on the right track, while the black hole is consuming matter its visible by the effect it is having on said matter. If it is consuming no matter than it becomes invisible to the eye once again, although you could still detect (in theory) it's gravitational distortion by gravity lensing a star behind the black hole (basically the star's light bends around the black hole so you can see it.)

Detecting them from their Hawking Radiation is another possibility although I'm not sure if that has yet been accomplished.