How to Get the Most Out of Your Chemical Rocket Ship

The key thing is having high exhaust velocity, so that those particles you're throwing out are carrying a lot of momentum. Because momentum is like mass ties velocity. So if you want a conserve on how much stuff you throw out the bag, the mass, then you just need a lot of velocity. Those are a chemical kind of rockets, and that's what we used to get off the earth. But those are kind of tough for going across to other planets or stars. Rate.