A rocket is a vehicle, which can be used for payload, crew or both, that derives its propulsion from a rocket engine. The engine can use solid or liquid propellant to generate thrust. The most popular use of rockets is for space transportation, but they can also be used by the military, for atmospheric research, as a hobby or for any other use where high speed is needed. Investigate a wide variety of rocket properties using Wolfram|Alpha.
Explore the variety of rockets that have been developed by different countries for a variety of purposes.