Sounding rockets have been used for scientific research since the late 1950s and were originally implemented in meteorological and upper atmosphere studies.They are constructed from three major parts, i.e. a single or the two-stage solid-fuel propulsion system, the service systems (rate control, telemetry module, recovery system) and the scientific payload (the section that carries the instruments to conduct experiments). Sounding rockets are sub-orbital carriers, which means that they do not go into orbit around Earth. The rockets follow a parabolic trajectory from launch to landing. The rockets originally take their name from the nautical term ‘to sound,’ which means “to take measurements”.