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Space exploration (1 - 10 of 228 items)

NASA: Assessments of Major Projects
http://www.gao.gov/products/GAO-16-309SP

GAO-16-309SP: Published: Mar 30, 2016. Publicly Released: Mar 30, 2016.
NASA: Human Space Exploration Programs Face Challenges
http://www.gao.gov/products/GAO-15-248T

GAO-15-248T: Published: Dec 10, 2014. Publicly Released: Dec 10, 2014.