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Subject
- Astronomy2
- Astrophysics2
- Space shuttles2
- Technology assessment2
- Air1
- City planning1
- Climatic changes1
- Energy policy1
- Global temperature changes1
- Global warming1
- Industrialization1
- Landsat satellites1
- Lunar Orbiter (Artificial satellite)1
- Project management1
- Surveyor Program (U.S.)1
- U-2 (Reconnaissance aircraft)1
- Water1