China sent three astronauts to its permanently inhabited Tiangong space station on Wednesday. The Shenzhou 19 spacecraft lifted off on a Long March 2F rocket from the Jiuquan Satellite Launch Center in northwest China at 4:27 a.m. local time, state media reported. In the space station, the astronauts will conduct numerous space science experiments in the fields of life sciences, microgravity physics, materials, medicine and new technologies.