Tianzhou 1 (Chinese: 天舟一号) was the debut mission of the Tianzhou-class uncrewed cargo spacecraft.

It plunged into Earth's atmosphere and burned up after a set of braking maneuvers under ground control.

It is a Chinese automated cargo spacecraft developed from the Tiangong-1 to resupply its future modular space station.

Tianzhou 1 launched successfully on 20 April 2017 at 7:41 pm local time, from the Wenchang space center.

It critically demonstrated propellant transfer for the Chinese space station, the last big hurdle for long-duration expeditions.