Well, that's something that always bugs me about many sci.fi. movies. And the sound of the explosions too, is a bit unrealistic. If they can't hear you scream in space, how come we can hear the explosions?

But as for real explosions in space; hmmmm, interesting.

There is Oxygen around in space, especially in some stars and supernova, I think. But I don't know if it's required for the kind of "burning" that goes on in space. I think the colors that we might associate with "explosions" come from the ionizatioin of various elements.

...any help??
~SA

Pyrolysis creates reduced carbon! ...Time for the next step in our evolutionary symbiosis with fire.