QUICK READ: How do rockets go up?


 

To put it simply, combustion. Rockets store propellant (a fuel and an oxidizer, usually being Kerosene and Oxygen) which are ignited in the engines of the rocket to produce a great amount of gases that are quickly shot out of the bottom of the rocket, with the amount of force being greater than the weight/mass of the rocket and the force of gravity, forcing the rocket to move upwards.