一小步:尼尔·阿姆斯特朗的遗产
2019-08-06
Born on August 5, 1930, Neil Armstrong would have been 89 years old today. During his lifetime, he was a man of many accomplishments and when he l...
阿波罗
美国宇航局历史上的本周:1971年7月31日首次使用月球漫游车
2019-08-02
This week in 1971, Apollo 15 became the first mission to use the Lunar Roving Vehicle. The LRV was a lightweight, electric vehicle designed to ope...