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WELCOME to the Science and Mission Systems Office
The Mission of the Science and Mission Systems Office (S&MS) is to develop, operate and execute NASA programs, projects and activities that fall at the very intersection of science and exploration – where every discovery or achievement rewards the nation now and in the future, in terms of general scientific knowledge and understanding, and in furthering the agency's ambitious mission to expand human reach across the solar system. It is the work of each organization within the Science and Mission Systems Office to achieve specific goals that enable these twin pursuits – performing basic and applied research to achieve NASA's science and discovery objectives, and developing new systems, solutions and technologies for exploration.

 

Dr. John Horack

John M. Horack, Ph.D.
Manager

Career Highlights
- Manager for Science & Mission Systems Office
- Co-Founder of Mobular Technologies, Inc.
- Assistant Mission Scientist, Astro-2/STS-67
- Research Scientist for Gamma Ray Astrophysics
- Assembly, Test and Calibration Scientist in Engineering Physics for BATSE

Raymond G. (Corky) Clinton

Raymond G. (Corky) Clinton
Deputy Manager

Career Highlights
- Deputy for Program Assurance, SMA Directorate
- Manager, ESTD, Science and Technology Directorate
- Manager, MSAD, Science Directorate
- Special Assistant, MRI, Physical Sciences Research
- Assistant Enterprise Scientist, Physical Sciences Research
- Chief, Engineering Directorate
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Julie Sanchez

Julie N. Sanchez
Associate Manager

Career Highlights
- Executive Manager - SSPPO Directorate
- Technical Assistant - Flight Projects Directorate
- ISS Payload Operations Director
- Team Lead - Training and Crew Operations
- Training Manager and Operations Controller - USML2
- Alternate Payload Specialist - IML1
- Crew Interface Coordinator – Spacelab J

Joe Letsinger

Joseph Letsinger
Program Planning & Control Office Manager

Career Highlights
- Deputy Director, Missile Systems Group AAC, USAF
- Deputy Director, Combat Support Systems AAC, USAF
- Deputy Comptroller, AAC, USAF
- Budget Officer, AAC, USAF
- Deputy CFO, Armament Product Directorate, USAF
- Chief, Program Control, Auto Air Missile SPO, USAF

Dr. Melissa McGrath

Melissa A. McGrath, Ph.D.
Chief Scientist

Career Highlights
- Adjunct faculty, Dept of Physics, University of Alabama (HVL)
- Adjunct faculty, Dept of Physics, Johns Hopkins University
- Deputy Director, SMD Solar System Division NASA HQ
- Deputy Director, Science & Technology Directorate MSFC
- Chair, AAS Nominating Committee
- Secretary-Treasurer & Council member, AAS DPS
- Head, Community Missions Office, STSI, Baltimore, MD


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