That's a great question! It's one of the things that makes rocket science so fascinating. Here's how rockets work in space:

Newton's Third Law of Motion: For every action, there is an equal and opposite reaction.

* The Action: A rocket engine burns fuel, expelling hot gas out of the nozzle at high speed.

* The Reaction: This expulsion of gas creates a force in the opposite direction, pushing the rocket forward.

So, what does the rocket push against?

* It pushes against the exhaust gas itself! This is key. Rockets don't need air to push against. The thrust is created by the rocket's own engine expelling mass (the hot gas).

How do rockets turn in space?

Rockets use reaction control systems to turn:

* Small thrusters: These are smaller engines located around the rocket's body.

* Firing thrusters: By firing thrusters in specific directions and sequences, the rocket can create a torque (twisting force) that causes it to rotate.

* Gyroscopes: Some rockets use spinning wheels called gyroscopes to maintain their orientation and help with turning.

Here's a simple analogy:

Imagine you're on a skateboard. You can push off the ground to move forward. In space, the rocket is like the skateboarder, and the expelled gas is like the ground. The rocket pushes the gas out, and the gas pushes the rocket in the opposite direction.

Let me know if you have any more questions about rocket science!