A nine-year-old boy who shot to national fame after pointing out factual errors in a planetarium documentary in July is now giving astronomy lessons to his schoolmates.
Dubbed “rocket boy”, Yan Hongsen, a primary school student from Shaoxing, Zhejiang province, eastern China, was invited to teach his whole school about space science at the opening ceremony of the new school term.
Yan has been a space science enthusiast since he was just four years old and makes cardboard rocket models and teaches online classes for other enthusiasts.
没有人指导，严弘森就自学航天知识。从看图片、听故事，到查资料、记笔记，如今他家里的书架上摆满了航天书籍。严弘森还因航天爱上了天文学和军事，因为需要电脑查阅资料，他又爱上了电脑和编程。
“He became interested in space science as a result of the rocket launch. And because of space science, he fell in love with astronomy and military affairs.”
图源：抖音@谁家那小谁
每逢假期，家人都会带他开启航天之旅。他们还去过文昌、酒泉等卫星发射中心，以及航天飞船返回点、中国火星基地等。至今严弘森已参观打卡22家天文馆、科技馆，且凭借着丰富的航天知识，他不时能指出展览信息的错误，前一阵也因此收获了网友的关注。
Yan became an internet darling in July when his father shared a video of him angrily pointing out that a Long March 3 rocket was wrongly referred to as a Long March 5 rocket in an educational film shown to visitors at a planetarium in Lhasa, Tibet autonomous region.
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