More than 80 primary school pupils in Lhasa, Tibet autonomous region, listened to a livestreaming science lecture presented by astronauts aboard the Chinese space station on Thursday afternoon at the Tibet Museum of Natural Science.

The students joined others at more than 50 provincial and city science and technology museums around the country as three astronauts — Major General Zhai Zhigang, Senior Colonel Wang Yaping and Senior Colonel Ye Guangfu — explained their life and work inside the space station and demonstrated physical phenomena in microgravity, including the way objects behave, fluid tension and cell biology.