China livestreamed the first science class from the Wentian lab module of its space station on Wednesday. It's the first class delivered by the Shenzhou-14 taikonauts – Chen Dong, Liu Yang and Cai Xuzhe, who were sent to the space station on June 5 for a six-month mission. During the space lecture, taikonaut Liu Yang conducted a solid-liquid vibration experiment.
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