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"50 Cents, 50 Years": Finding the Value of the Space Program on the Back of a Quarter
1983 and 1985 multi-revolution opportunities to Mars
2021 PDC Hypothetical Impact Exercise: Probabilistic Asteroid Impact Risk
2023 NASA Science: NASA SmallSats Missions for Science and Technology Demonstration
A bibliography of planetary geology principal investigators and their associates, 1979 - 1980
A bibliography of planetary geology principal investigators and their associates, 1980-1981
A bibliography of planetary geology principal investigators and their associates, 1982 - 1983
A candidate mission using the Shuttle and solar electric propulsion