The Long March-7 Y3 rocket, carrying the Tianzhou-2 cargo spacecraft, blasts off from the Wenchang Spacecraft Launch Site in south China's Hainan Province, May 29, 2021. China launched the cargo spacecraft Tianzhou-2 on Saturday, which is scheduled to dock with the space station core module Tianhe to deliver supplies, equipment and propellant. (Photos: Xinhua)

The Long March-7 Y3 rocket, carrying the Tianzhou-2 cargo spacecraft, blasts off from the Wenchang Spacecraft Launch Site in south China's Hainan Province, May 29, 2021. China launched the cargo spacecraft Tianzhou-2 on Saturday, which is scheduled to dock with the space station core module Tianhe to deliver supplies, equipment and propellant.

The Long March-7 Y3 rocket, carrying the Tianzhou-2 cargo spacecraft, blasts off from the Wenchang Spacecraft Launch Site in south China's Hainan Province, May 29, 2021. China launched the cargo spacecraft Tianzhou-2 on Saturday, which is scheduled to dock with the space station core module Tianhe to deliver supplies, equipment and propellant.

The Long March-7 Y3 rocket, carrying the Tianzhou-2 cargo spacecraft, blasts off from the Wenchang Spacecraft Launch Site in south China's Hainan Province, May 29, 2021. China launched the cargo spacecraft Tianzhou-2 on Saturday, which is scheduled to dock with the space station core module Tianhe to deliver supplies, equipment and propellant.

The Long March-7 Y3 rocket, carrying the Tianzhou-2 cargo spacecraft, blasts off from the Wenchang Spacecraft Launch Site in south China's Hainan Province, May 29, 2021. China launched the cargo spacecraft Tianzhou-2 on Saturday, which is scheduled to dock with the space station core module Tianhe to deliver supplies, equipment and propellant.