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Mr. Gramling began his career at the NASA Goddard Space Flight Center in 1985, developing flight hardware simulators for the Hubble Space Telescope Project. In 2015 Mr. Gramling became Associate Director of Flight Projects for Earth Science Projects at Goddard, concurrently serving as Program Manager of the Earth Systematic Missions Program (ESMP). He returned to NASA in 2020, where he serves as the Director of the Mars Sample Return Program in the Science Mission Directorate at Headquarters.