The Long March-5 Y5 carrier rocket was injected with liquid oxygen and hydrogen cryogenic propellant at 6:30 pm on Monday. The rocket carrying China's Chang'e-5 lunar probe is scheduled to lift off at between 4 and 5 am BJT on Tuesday, according to the China National Space Administration.

Photo taken on Nov. 17, 2020 shows the Long March-5 Y5 rocket at the Wenchang Spacecraft Launch Site in south China's Hainan Province. (Photo: Xinhua)

This is the second launch of the Long March-5 carrier rocket, which will transport the Chang'e-5 lunar probe to the Earth-Moon transfer orbit. The unmanned probe aims to collect lunar samples and take it back to Earth.

The window of the Long March-5 Y5 rocket launch takes into consideration the earth-moon position and other factors.