In July, the station's first lab component -- Wentian, or Quest for the Heavens – will be launched, while the second lab named Mengtian, or Dreaming of the Heavens, will be sent to dock with the station in October. After they are connected with the Tiangong, the station will form a T-shaped structure.

After the space labs, the Tianzhou 5 cargo craft and the Shenzhou XV crew are scheduled to arrive at the massive orbiting outpost around the end of the year, according to mission officials.

The Tiangong is expected to operate for up to 15 years and will serve as a scientific platform, space officials have said, noting it will also be open to foreign astronauts.