1. Space Shuttle Program
Date: 1981-2011
Cost: $199 bn
2. International Space Station
Date: 1998-2020
Cost: $160 bn (estimated)
3. Apollo Space Program
Date: 1961-1972
Cost: $109 bn
4. SLS and Orion (NASA’s replacement manned rocket and capsule)
Date: 2014-2018
Cost: $23 bn (estimated)
5. Global Positioning System (GPS)
Date: 1978-present
Cost: $12 bn
6. Hubble Space Telescope
Date: 1990-present
Cost: $10 bn
8. James Webb Space Telescope
Date: Scheduled for 2018
Cost: $8.8 bn (estimated)
9. Galileo (Europe’s GPS)
Date: 2016
Cost: $6.3 bn (estimated)
10. GLONASS (Russia’s GPS)
Date: 1982-present
Cost: $4.7 bn
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