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NASA concluded a balloon mission in which a super-pressure balloon circumnavigated the Earth over the southern hemisphere in ...
NASA concluded a balloon mission in which a super-pressure balloon circumnavigated the Earth over the southern hemisphere ...
The day has become 0.06 microseconds longer, and the Earth's axis has shifted by about 2 cm due to the Chinese Three Gorges ...
Veteran astronaut Don Pettit conducted hundreds of hours of research and captured over half a million photos during his ISS ...