Rockets work in empty space because they carry their own oxygen supplies, they carry all the fuel necessary to provide the combustion in the vacuum of space. Also, did you know that the engines on the first stage of the Rockets are optimized for the atmosphere, but they would work so terribly in orbit? That's why they use entirely different looking engines with entirely different designs in order to operate in the vacuum of space.

Rockets working empty space because they carry their own oxygen supplies, they carry all the fuel necessary to provide the combustion in the vacuum of space. Also, did you know that the engines on the first stage of the Rockets are optimized for the atmosphere, but they would work so terribly in orbit? That's why they use entirely different looking engines with entirely different designs in order to operate in the vacuum of space.