A respected name in space systems engineering workforce development for over 20 years.

Teaching Science and Technology Inc. (TSTI)

Teaching Science and Technology, Inc. (TSTI) is a veteran-owned small business that assists companies and organizations who wish to improve their systems engineering skills as they relate to the space domain. We present quality short astronautical courses and workshops in space systems engineering and program management to customers around the world. Our teaching style is highly interactive with emphasis on learning-by-doing and practical real-world examples and applications. Our systems engineering courses provide the processes, tools, and information necessary to “jump-start” new-hires to the space business or improve the performance of mid- to senior-level engineers, systems engineers, and technical program managers. In addition, we provide focused systems engineering support to organizations as they approach critical events in the development process and work as red team support. We wrote the books that describe SE in the space domain, and we’ve all had practical SE and PM experience in the development world.

We are happy to travel to your location around the world to help you develop your space expertise.

What Sets Our Astronautical Courses Apart:

  • CREDIBILITY: We wrote the books. We’ve been there, done that. We bring extensive systems engineering experience.
  • COMPETENCE: We’re professional teachers. This is our day job. We take the complex and make it simple. We’re explainers and motivators. Hands-on exercises ensure that you learn space by doing space. No death by PowerPoint.
  • CURRICULUM: We take you from new hire to seasoned space professional. Our on-line learning portal enables continuity through your increasing levels of expertise.
  • COST: We’re small, with low overhead, and come to you. Your cost is 50% less – you can train twice the people for the same price.
  • CONTRACTING: You can get on contract in minutes! We’re only a credit card purchase away.

Get to Know the Instructors of our Systems Engineering Courses

Dr. Randy Liefer is a Associate Fellow of AIAA with over 35 years of aerospace engineering experience. He has earned advanced degrees from the Massachusetts Institute of Technology and the University of Kansas. He has served as Division Chief and Deputy Head of the Department of Astronautics at the U.S. Air Force Academy, and has been a member of the AIAA Space Systems Technical Committee. He has been a visiting lecturer at Delft Technical University in The Netherlands working in the SpaceTech Masters Program in Space Systems Engineering. He is also an adjunct professor at Stevens Institute of Technology.



jerry_resized1Dr. Jerry Jon Sellers
, author of Understanding Space: An Introduction to Astronautics, and is a contributing author and editor of Applied Space Systems Engineering, and a contributing author of Human Spaceflight Analysis and Design.  He has over 30 years of space systems experience including Guidance & On-board Navigation Officer in Space Shuttle Mission Control; Assistant Professor of Astronautics at the U.S. Air Force Academy; and Chief of Astronautics for the Air Force European Office of Aerospace Research & Development.  He is an Associate Fellow at AIAA and the former Chairman of the Space Systems Technical Committee. He is also an adjunct professor at Stevens Institute of Technology.


Dr. Michael DeLorenzo (BGen, USAF, retired) is Professor Emeritus at the United States Air Force Academy (USAFA) and former head of the USAFA Department of Astronautics with over 40 years of research and development experience in astronautical engineering.  He has served in numerous Air Force science and engineering leadership positions to include the Vice Commander of the Air Force Research Laboratory, headquartered at Wright-Patterson AFB, OH. His doctoral research was conducted at Purdue University and specialized in the control of large flexible spacecraft. He is also an adjunct professor at Stevens Institute of Technology.


Dr. Peter Van Wirt is a former Deputy Department Head for Labs and Research of the Department of Astronautics at the U.S. Air Force Academy. He has been a visiting lecturer for the Technical University of Delft’s SpaceTech Masters Degree in Space Systems Engineering and is an Adjunct Professor for the Space Systems Engineering Master’s program at the Stevens Institute of Technology. He also instructs at the National Security Space Institute in Colorado Springs, CO.  He has served as a systems engineer/program manager for a variety of US Air Force engineering developments.  Peter has over 30 years of aerospace engineering experience and over 20 years teaching experience. He earned his doctorate at the Utah State University. He is also an adjunct professor at Stevens Institute of Technology.


Dr. Wiley Larson is managing editor of McGraw-Hill’s Space Technology Series and editor and coauthor of Space Mission Analysis and Design, co-editor of Applied Space Systems Engineering and eight other reference books on space systems. He is the Director and Distinguished Service Professor for the Space Systems Engineering Master’s program at the Stevens Institute of Technology and was former director of SpaceTech’s Masters Program in Space Systems Engineering at Delft Technical University in The Netherlands. He has also served as Head of Engineering at the International Space University in Strasbourg, France, and has over 40 years experience in space launch, satellite integration and test, and space mission design. He has consulted with numerous government and industry organizations and taught thousands of people around the world. Wiley is an elected member of the International Academy of Astronautics. He is also an adjunct professor at Stevens Institute of Technology.


Dr. Pete Swan is an AIAA Fellow with over 38 years experience in both government and commercial space systems. He is a former faculty member at the U.S. Air Force Academy, spent 8 years at the USAF Space Division in Los Angeles as a spacecraft systems engineer and program manager, and worked with the Motorola space divisions for 10 years. He was a member of the Air Force Scientific Advisory Board and is now a member of the Army Science Board. Pete is an elected member of the International Academy of Astronautics, and an active player on the Committee on Scientific Legal Liaison and the Committee on Disaster Mitigation from Space.  Editor of Impact of Space Activities upon Society and Global Mobile Satellite Systems.  He is currently leading an Academy study of Space Expectations for the Commission (6) on Society and Space.


unknownDr. Jim Reilly has extensive multi-disciplinary technical, engineering, and program management experience in hydrocarbon exploration, space systems development, aerospace and marine projects, spaceflight operations, and education. His work experience has been in private, academic, government, and military sectors and consists of more than 25 years of active project management of inter-disciplinary and international partner project teams. Major areas of experience: project team management, requirements and ICD development, DT&E, OT&E for spacecraft systems and projects, human factors assessment, performance and training standards, T&V activities, and three flights aboard the Space Shuttle for a total of 856 hours in space.