# 2 Black Holes

1. Sep 23, 2005

### zelldot

what happens when to black hole crash into each other?

2. Sep 23, 2005

Staff Emeritus

They merge and make one bigger black hole.

3. Sep 24, 2005

### zelldot

do black holes ever end, or do they just keep sucking everything in?
and in what happens all that light in a black hole? it must be very bright in the center of a black hole

Last edited: Sep 24, 2005
4. Sep 24, 2005

### zelldot

in theory light goes fast when it comes into contact with a black hole, E=C x C2
but if light dont have a mass E=0xC2 then light should just "stop" of cease to exist

but thats just my theory

5. Sep 24, 2005

We don't allow personal theories on our science forums. There's a procedure for getting them posted on a special forum. Light has momentum and energy, but not mass. Its momentum is $$p = h\nu$$, where nu is the frequency and h is Planck's constant, and its energy is pc.