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Keywords
- Exploration of outer space3
- Aeronautics -- Data processing1
- Aerothermodynamics1
- Bones -- Physiology1
- Computer programming1
- Global Positioning System1
- Gravity1
- Joints -- Physiology1
- Lunar exploration1
- Manned space flight1
- Radio astronomy1
- Reduced gravity environments1
- Solar energy1
- Space astronomy1
- Space flight -- Physiological effect1
- Space flight to Mars1
- Space stations1
- Space vehicles -- Solar engines1