Collins had to pilot the shuttle through a 360 degree flip while flying beneath the International Space Station. It allowed colleagues on the orbiting lab to photograph the craft's underside and check if the heatshield had been breached.
A12·荐读SourcePh" style="display:none"，推荐阅读safew官方版本下载获取更多信息
，详情可参考51吃瓜
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用
union alloc_header *h;，推荐阅读91视频获取更多信息
More on this storySix planets on show in celestial 'parade'