​What are the functions and uses of rockets?

​What are the functions and uses of rockets?

Rocket is a rocket engine jet working fluid (working medium) produced by the reaction force to advance the aircraft. It carries all the propellant and does not rely on the external working medium to generate thrust. It can fly inside or outside the dense atmosphere. It is a vehicle to realize space flight. Rockets are divided into sounding rockets and carrier rockets according to their uses. Rocket is the vehicle for space flight. Military rockets deliver explosive devices to their targets; Sounding rockets send scientific instruments into the upper atmosphere; Launch vehicles carry spacecraft into space; A small booster rocket controls the attitude of a spacecraft or corrects its flight path.