Speaking at Queen's College, Qi Faren, first chief designer of the Shenzhou manned spacecraft, says scientific research aims to create a better life for mankind. (PHOTO PROVIDED TO CHINA DAILY)Top Chinese scientists spoke youths’ language on Friday as they imparted knowledge usually shrouded in arcane space terminology. On the third day of a five-day trip, the delegation shared their expeditions into the unknown with more Hong Kong students.

Speaking at Po Leung Kuk Ho Yuk Ching (1984) College, Xie Jun, deputy chief designer of BeiDou, says the navigation satellite system is an infrastructure providing public services to the world. (PHOTO PROVIDED TO CHINA DAILY)

Sun Zezhou, chief designer of Tianwen 1, says the trials and errors before success are like the difficult questions in school homework. (EDMOND TANG / CHINA DAILY)

Long Lehao, chief designer of China's Long March rocket series, interacts with students at Pui Kiu College in Sha Tin, Hong Kong, on June 25, 2021. (EDMOND TANG / CHINA DAILY)

Speaking at St. Teresa Secondary School, Zhang He, executive director of the Chang’e 4 probe, says China’s lunar missions are the result of hundreds of thousands of researchers working together. (PHOTO PROVIDED TO CHINA DAILY)

This photo shows a hand drawn card created by a student of Pui Kiu College for a team of national aerospace experts who visited the school on June 25, 2021. (PHOTO PROVIDED TO CHINA DAILY)

Speaking at The Church of Christ in China Heep Woh College, Hu Hao (right), chief designer of China’s third-phase lunar exploration project, says the moon is like a mirror to Earth, and is yielding previously elusive knowledge. (PHOTO PROVIDED TO CHINA DAILY)

Long Lehao (front, 2nd left), chief designer of the Long March rocket series, poses for photos with students at Pui Kui College in Shatin, Hong Kong, June 25, 2021. (EDMOND TANG / CHINA DAILY)

Students watch a video before Sun Zezhou, chief designer of China’s Tianwen 1 Mars probe, gives a lecture at Diocesan Boys' School on June 25, 2021. (EDMOND TANG / CHINA DAILY)