David King, director of NASA's Marshall Space Flight Center in Huntsville, Alabama, recently named Stephen C. Doering associate program manager for the Constellation Program at the center.

The Constellation Program is responsible for developing the new fleet of Ares rockets, as well as the Orion crew capsule and the Altair lunar lander that will send explorers to the International Space Station, the moon, and beyond. As the associate manager, Doering will serve as the Marshall Center director's Constellation Program representative and lead all of Marshall's Constellation program efforts. In this role, he will provide guidance to Ares Projects management for program-level systems engineering and integration; safety and mission assurance; testing and verification; and service module and launch abort systems. A 25-year veteran aerospace engineer, he has held numerous positions with NASA and aerospace contractors. Before appointment to his new position at the Marshall Center, he served as manager of the Extravehicular Activity Office at NASA's Johnson Space Center in Houston. He was responsible for oversight of the entire range of program, personnel and business activities related to spacewalking for NASA.

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