The mission is expected to become the longest crewed spaceflight by China, doubling the time spent in the Shenzhou XII mission. It will also see the first spacewalk by a Chinese woman.

Mother of a 5-year-old girl, Wang is China's second female astronaut to take part in a spaceflight. She took part in the Shenzhou X mission in June 2013. In the Shenzhou XIII flight, she will become the first Chinese woman to enter a space station and also the first Chinese woman to carry out a spacewalk.

One of China's most challenging and sophisticated space endeavors, Tiangong will eventually consist of three main components－the Tianhe core module attached to two large space labs－with a combined weight of nearly 70 metric tons. The entire station is set to operate for about 15 years in a low-Earth orbit about 400 kilometers above the planet.