China launches Shenzhou 21 astronauts to Tiangong space station for a 6-month stay (video)

China's Shenzhou 21 mission successfully launched astronauts to the Tiangong space station for a six-month stay, marking a significant achievement in the country's space exploration efforts. This mission not only showcases China's growing capabilities in space but also contributes to international scientific research and collaboration in low Earth orbit.