How does space propulsion work?

Answer by  mammakat (11147)

Propellant burns, creating an explosive reaction, ie creating energy. The force of that energy being expelled creates a forward motion. The force of the energy displaces mass, Einstein's theory which made the possibility of space travel viable.

Answer by  hahagal (983)

This work by adding additional space towards the bottom of the area in order to provide additional room in the workplace.

Answer by  JimSmith (137)

In the vacuum of space, one you start to accelerate. You keep your top speed forever unless acted upon by another force. On earth the gravity and air slow you down, space has neither.