Space shuttles are space transport vehicles that orbit around the Earth. These are reusable rocket-launched vehicles that help in the transport of cargo and people to and from the orbiting spacecraft. These space shuttles glide on a runway landing while returning on the earth. The first space shuttle was launched by NASA in 1981. It was named the Space Transportation System. The three main parts of a shuttle are a winged compartment that carried both crew and things to be transported, external fuel tank and a pair of large propellants to move the shuttle.