The Long March 3B is a Chinese rocket designed for launching satellites into orbit. It is part of the Long March family of launch vehicles, which are operated by the China National Space Administration (CNSA). The rocket is known for its reliability and has been used for various missions, including launching communication and weather satellites. First launched in 1996, the Long March 3B has undergone several upgrades to improve its performance. It typically uses a combination of liquid and solid propellants and can carry payloads of up to 5,000 kilograms to geostationary transfer orbit. Its successful missions have contributed to China's growing capabilities in space exploration and satellite technology.