Donna Lu is an assistant editor, climate, environment and science at Guardian Australia
12月21日，嘉宾敲锣宣布先农坛庆成宫正式面向社会公众开放。本版摄影/新京报记者 浦峰
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The goal is to accelerate the pace of launches of the huge Space Launch System rocket while carrying out Artemis flights in evolutionary steps — not attempting missions that rely on too many untested technologies and procedures at once.
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