Fire in the vacuum of space without oxygen does not burn. But the gun can still fire in such conditions. The fact is that modern ammunition has its own oxidizing agent, so the gunpowder explodes and the bullet is fired.
But even if this shot does occur, it will not be heard in space. This is because there is no air there. For this reason, the sounds of gunfire in space that we see in games and movies are completely deception.
Also, when fired from a weapon, the smoke emitted would coalesce into a sphere at the end of the barrel.
After the shot, the bullet will move at the same speed in space since there will be no air resistance. This will continue until this bullet hits an object. And even if it has no obstacles, it will not be possible for it to exceed the limits of the universe, since its expansion speed is 50-100 km and its speed is very low: 1422 m/s / s.
In addition, the recoil after a bullet is fired will affect a person more than on Earth. As a result, the shooter will fly in the opposite direction of the shot and begin to slowly spin in space.
Finally, due to direct sunlight, the gun can get so hot that the ammunition can explode on its own. And in the shadows the weapons can become very cold, brittle and begin to stick together.
Source: Ferra
