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Top network posts
- 146 Could we breathe an atmosphere that is not nitrogen based?
- 64 Is Jupiter bright enough to be seen in color by the naked eye from Jupiter orbit?
- 62 Why did Saturn V not head straight to the moon?
- 61 Why is there a large wooden ball on Mariner 3's magnetometer?
- 53 Why isn't it possible to build a space elevator at the north pole?
- 52 Are there any known reasons why there are no spaceports in the European Union?
- 45 First call to the moon 1969
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