BEIJING - China's Tianzhou 1 cargo spacecraft completed its second docking with Tiangong 2 space lab at 2:55 pm Monday, after flying around the space lab.

Tianzhou 1 separated from Tiangong 2 on Monday morning and then flew around the space lab, according to the China Manned Space Engineering Office.

Tianzhou 1, China's first cargo spacecraft, was launched on April 20 from south China's Hainan Province, and it completed automated docking with the orbiting Tiangong-2 space lab on April 22.

The two spacecraft completed their first in-orbit refueling on April 27 and their second in-orbit refueling on June 15.