China is counting down to send a three-person crew of the Shenzhou-16 spaceship to the Tiangong space station on May 30. This will be mission commander Jing Haipeng's 4th space trip, and the first for the other two crew members. Gui Haichao is also the first payload expert to visit the space station. Professor Yang Yuguang from the China Aerospace Science and Industry Corporation says the Shenzhou-16 crew is well-trained to carry out a range of missions on the Tiangong space station.