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{{short description|China crewed lunar surface lander}} {{About|the Chinese lunar lander|other uses|Lan Yue (disambiguation){{!}}Lan Yue}} ...

...ectric generator]], which has been used on many space probes and on crewed lunar missions. Small fission reactors for Earth observation satellites, such as ...on in the spacecraft's service module. Upon reentering the atmosphere, the lunar module equipped with the [[SNAP-27]] RTG exploded and crashed into the Sout ...

...ne|author2=Amy Shell-Gellasch|title=Mathematical Time Capsules: Historical Modules for the Mathematics Classroom|url=https://books.google.com/books?id=Aa_VmrW For centuries, spherical trigonometry has been used for locating solar, lunar, and stellar positions,<ref name="Gregory1816">{{cite book|author=Olinthus ...

...nd a fault detection system. The software is complex and comprises several modules with their own tasks, such as oxygen partial pressure measurement, ambient In 1996 [[Cis-Lunar Development Labs]] was selling its MK-IV rebreather. About a year later (19 ...