Whats ''light'' in space

Yes.
Any light.
Light from a flashlight. Or light from any star.
All light travels at the speed of light in space. 300,000 km / second. (186,000 miles / second).

Even at that speed, light can not escape the intense gravity within the event horizon of a black hole.
Once light, or any material object crosses the event horizon, it ultimately ends up in the singularity in the center. The singularity is an infinite gravity distortion.

Read this article for more info:
http://simple.wikipedia.org/wiki/Black_h…

"Does light move?" is a GREAT question! Actually it took some of the greatest minds in the world to figure out that the answer is yes and no.
Light is what we call electromagnetic radiation that is visible. Radio waves, microwaves, heat, light (all the colors), ultraviolet, x-rays and gamma rays are all electromagnetic waves of energy we call EM radiation, EMR. It turns out that light is made up of magnetic waves and electric field waves - well actually it turns out that each wave is both magnetic and electric. And to further confuse things, each wave is composed of particles called photons. You can think of a beam of light as a stream of photons moving at 186,000 mile per second or a wave where each crest is traveling that fast.
A black hole bends space-time so much that if anything gets too close to it, there is no way to escape it. Note that this is different (slightly) from the common INCORRECT urban myth that black holes "suck" everything into them. So light shining onto a black hole will never escape. The region of space surrounding a black hole that is so warped that light can not escape is called its event horizon (because time seems to stop there, it is the horizon past which no events seem to happen). Light shining onto this area doesn't get by, it is captured.