In pictures: Chinese astronaut gives space lecture (15)

This TV grab taken on June 20, 2013 shows astronaut Nie Haisheng (R), one of the three crew members of Shenzhou-10 spacecraft, interacting with a student on earth during a lecture to students on Earth aboard China's space module Tiangong-1. A special lecture began Thursday morning, given by Wang Yaping aboard China's space module Tiangong-1 to students on Earth. (Xinhua)