
GAO Report: NASA: Assessments of Major Projects
"Although NASA's overall performance has improved, for 8 out of the last 9 years at least one major project has experienced significant cost or schedule growth. Such growth often occurs as projects prepare to begin system assembly, integration, and test; nine projects will be in that phase of development in 2016, including the Orion Multi-Purpose Crew Vehicle and Space Launch System, which are human spaceflight programs that have significant development risks."