 Ham's new position was as assistant to Frank Benz, director of engineering at the Johnson Space Center.In December 2003, she served as executive liaison from NASA to the National Renewable Energy Laboratory in Golden, Colorado, where she worked on federal plans for the storage and distribution of hydrogen fuel.Ham returned to the Johnson Space Center, where she was the technical director for the Constellation Program Office and involved in the major decisions involving
the Ares, Orion and Altair vehicles.