StellarXplorers inspires and attracts high school students to pursue studies and careers in science, technology, engineering, and mathematics (STEM) through a challenging, space system design competition involving all aspects of system development and operation with a spacecraft/payload focus. The program supplies a self-contained academic/education component accessed online as a curriculum supplement, as well as specific training in the use of system simulation software, Systems Tool Kit. The competition leading up to the finals will be accomplished from the team’s home location. An exciting hands-on learning experience that develops commercially valuable skills and increases appreciation for the critical role of space in cadets daily lives. Cadets have practice on Tuesdays after school and compete once a month.