Amazon CEO Jeff Bezos recently announced that he will travel to space next month aboard his own company' rocket, ahead of SpaceX's Elon Musk. Why are two of the richest men on the earth both so passionate about flying into space? Could it be that the space tourism market, as estimated by investment bank UBS, reach $3 billion by 2030? How about China? In this episode of #BizBeat, CGTN's Zhu Zhu explains.