He retired from NASA in November 2006 to accept a position with ATK Launch Systems where he served as Vice President, Space Exploration Systems, and was the ATK site manager at Marshall Space Flight Center, Huntsville, AL.
He retired from NASA in November 2006 to accept a position with ATK Launch Systems. Halsell is Vice President, Space Exploration Systems, and the ATK site manager at Marshall Space Flight Center, Huntsville, AL.