Three Chinese astronauts Nie Haisheng, Liu Boming and Tang Hongbo will soon travel to the Chinese space station Tianhe core module in low Earth orbit. They will stay there for three months, which is the longest mission in the Chinese manned spaceflight program.

China is constructing a space station actively. There are 11 launch missions planned across 2021-2022, including 3 space station modules, 4 cargo spaceships and 4 manned spaceflight missions. Now, the Tianhe core module has docked with the Tianzhou 2 cargo in orbit, waiting for the three astronauts to stay.

This manned mission includes two rounds of extravehicular activity, and involves a number of tasks related to space living and technology experiment, such as robotic arm operation, space medicine, in-orbit construction, and more. In this mission, the commander Nie Haisheng and astronaut Liu Boming have completed two spaceflight missions and one spaceflight mission in the past respectively, while it is the first time for Tang Hongbo to enter into space. Each astronaut has received over 6,000 hours of training and they are ready to open a new chapter in the construction of China's long-term space laboratory.