Consisting of two samplers for collecting loose and sticky forms of lunar regolith, two near-field cameras, as well as a packaging and sealing system, the "Surface Sampling and Packing System" has more than 400 components constructed in different materials which make the instruments light in weight but at the same time durable and strong enough to withstand the harsh space environment.

Yung said the process of developing the surface sampling and packing system was extremely difficult because deep space exploration was full of uncertainties.

There was a 1:1 model of Chang'e-5 lander-ascender vehicle in the team's laboratory, where, under Yung's leadership, the team has done more than 1,000 simulations.

Yung said the PolyU's research team was honored to fulfil the task of developing this key device. He said the country has trust in Hong Kong, so it has given us such an important task.

"I will review my experience in surface sampling and packing system, submit more proposals to the country, and strive to continue to play a role in the national deep space exploration program," he said.