1. Space Shuttle programs. He was the abort subsystem design manager for the Shuttle and as a Flight Design Manager, Mack lead the Shuttle design work for the first Spacelab mission and the first West Coast launch (which never flew). He later headed the ascent and entry flight design, owning more than 1700 software I-loads used for Shuttle ascent and launch aborts.
2. Mack moved to the Flight Directors Office, where he was responsible for Space Shuttle and the International Space Station Program integration for the mission operations and managed the SPAN (mission control's spacecraft analysis room) for more than 50 Shuttle flights. Mack moved to the Space Shuttle Program (SSP) Office in 1990. While in the SSP, he helped set up the Space Shuttle Development office and Control Board that over saw major Shuttle upgrade projects designed to keep the Shuttle flying until 2020. Mr. Henderson led a technical team on improvements for Shuttle derived launch vehicles, significantly increasing performance at reduced cost. Once the vision for space exploration and the early retirement of the Shuttle was announced, Mack helped set up the transition team charged with safely retiring the Space Shuttle. He led a team of project leads in an evaluation of costs and impacts for flying the Space Shuttle longer. Most recently, he was the lead for advanced planning for applications that would help reduce risks and operations cost for future programs, Mack was also the co-lead for a joint NASA and Department of Defense team working on defining a space- based solar power demonstration that could be flown on Shuttle to the ISS for the first WPT from space.
3. Mr. Henderson has received prestigious awards that include: 1983 NASA Exceptional Service Medal for his flight design leadership for the first Space Shuttle/Spacelab
4. mission STS-9. 2001 AIAA Aerospace Maintenance Award for his work on the Space Shuttle upgrades
5. mission STS-9. 2007 NASA Exceptional Service Medal for his continued pursuit of improvements for Shuttle flight safety