What would happen if a bullet was shot in outer space?

Fires can't burn in the oxygen-free vacuum of space, but guns can shoot. Modern ammunition contains its own oxidizer, a chemical that will trigger the explosion of gunpowder, and thus the firing of a bullet, wherever you are in the universe. No atmospheric oxygen required. read more

In space if you shot a bullet, there would be some smoke that would be expanding smoke where it does not happen on earth. If you are in vacuum between galaxies, by Newton third law of Motion, for every action there will be equal and oppisite reaction. read more

Modern ammunition contains its own oxidizer, a chemical that will trigger the explosion of gunpowder, and thus the firing of a bullet, wherever you are in the universe. No atmospheric oxygen required. The only difference between pulling the trigger on Earth and in space is the shape of the resulting smoke trail. read more