2021-06-27 06:06:01 GMT2021-06-27 14:06:01(Beijing Time) Xinhua English HONG KONG, June 27 (Xinhua) -- The opening ceremony of a lunar soil exhibition in Hong Kong on Saturday wrapped up the trip of mainland top space scientists in the financial hub, during which they visited universities and schools, igniting young people's flying dreams. "Seeing the scientist in person was totally different from watching the news," student Cheng Wai Shing told the reporter on Friday after attending a lecture given by Hu Hao, the chief designer of the third stage of the national lunar exploration program, at his school Heep Woh College.