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- Report
- Report
Testimony before the Subcommittee on Water and Power, Committee on Resources, U.S. House of Representatives
- Report
- Report
- Report
A Budgetary Analysis of NASA's New Vision for Space Exploration
- Report
- Report
Testimony before the Subcommittee on Space and Aeronautics, Committee on Science, U.S. House of Representatives
- Report
- Report
- Report