美国空军的X-37B太空船当时正在环绕地球，在某个官方未公开的轨道执行秘密任务。天空观察者发现了它。
The US Air Force's X-37B space plane is circling Earth and, although it is on a classified mission with an officially unpublished orbit, sky watchers have spotted it.
在太空中吃饭这一任务到“天空实验室”时有了很大进步。
这次任务同时对天空和地表进行研究，加拿大所制造的仪器所发射的激光可以帮助研究头上方的尘埃和云层。
The mission is examining the sky as well as the ground. A Canadian instrument is using a laser beam to study dust and clouds overhead.
皮特·康拉德常常说，和在月球漫步相比，他对于自己在天空实验室任务里所做的工作更加感到自豪。
Pete Conrad used to say he was prouder of his work on the Skylab missions than his walk on the Moon.
周围形成一个排气云奋进号航天飞机发射的第39a腾飞垫美国宇航局在佛罗里达州肯尼迪航天中心将在执行sts- 134任务的国际空间站的天空。
An exhaust cloud forms around Launch Pad 39a at NASA's Kennedy space Center in Florida as space shuttle Endeavour soars into the sky on the STS-134 mission to the International space Station.
尽管它不是一个轻松的任务，但是傍晚昏暗天空中烟囱的气味为这个项目的进行提供了灵感。
Although it was not an easy task, the smell of chimney smoke that filled the dim evening sky inspired the development of this project.
注：这个任务是有权在测试中的“火”在天空。
注：这个任务是有权在测试中的“火”在天空。
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