space design competition

StellarXplorers
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WHAT IS THE NATIONAL SPACE DESIGN COMPETITION?

Solving real-world space design challenges!

The StellarXplorers National Space Design Competition challenges teams of students to put their skills to the test in all-things space design. Open to students in grades 6-12, teams must solve orbit planning, satellite component, and launch vehicle selection scenarios presented in a series of online competition rounds... and no prior experience is required!

Register a team!

Competition Overview

All teams participating in the StellarXplorers competition are guaranteed three online rounds of competition. Each of these qualifying rounds is proceeded by a practice round that covers the expected round scenario. Round scenarios typically focus on determining orbits, picking satellite components, and selecting launch vehicles that meet mission requirements.

For each scored qualifying round, teams must submit their solution to the scenario within the allotted six-hour competition period. Some scenarios require teams to utilize Systems Tool Kit (STK), an accurate, physics-based modeling environment used to analyze platforms and payloads in a realistic mission context. 

Top teams in the qualifying rounds advance to the Semifinal Round, and from there the best-of-the-best (top 10 teams) advance to the in-person National Finals Competition.​

current competition Details
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All rounds of competition, except for the National Finals Competition, take place online. Teams may meet at and compete from any central location (classroom, computer lab, public library, home, etc.)

Teams and Participants

The competition is primarily designed for high school students, however middle school students are welcome to participate (Note: Scenario level of difficulty remains the same for all teams). All students may compete provided the team is fielded by one of the organization types listed below:
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  • Public, Private, Magnet, Charter, Parochial, Vo-Tech, and Home Schools
  • Air Force, Army, Marine Corps, Navy, Space Force JROTC units
  • Civil Air Patrol squadrons
  • U.S. Naval Sea Cadet Corps Divisions
  • Scouting Units
  • Boys and Girls Clubs
  • Youth STEM Programs
  • Other approved youth organizations (upon approval)

 There is no limit on the number of teams that an organization can field, as long as each team has between 2-6 competitors on its roster.
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Team Director (required):
The team director is an adult leader (18+ years old, typically a teacher, JROTC instructor, administrator, parent, etc.) approved by the participating organization to act as the administrative lead of a StellarXplorers team. Team directors are the main point of contact for competition-related correspondence. A team can only have one director who may register up to five (5) teams. If a participating organization has more than five  teams, an additional team director will be required.

Team directors are not required to have prior experience with the competition, nor do they need prior experience with STK software or orbital mechanics to serve in the role. The competition focuses on the problem-solving side of space system design and less on advanced physics or equations.
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Competitors (required):
Every StellarXplorers team must consist of between two (2) and six (6) competitors, and every competitor on the team roster must be enrolled in the participating school or organization. Composite teams (made up of students from multiple organizations) are permitted on a case-by-cases basis. For more information on competitor eligibility, see the STLX Rules Book.

Technical Mentor (optional):
Technical mentors are optional (but recommended) adult team advisors/subject matter experts. Teams are not required to have a mentor, but it is encouraged if the team director need assistance training the competitors on the competition topics. Mentors must register with the StellarXplorers Program Office and complete a background check. Once approved a mentor may be contacted by a team director to assist with a StellarXplorers team. Mentors can choose to volunteer with a team (or multiple teams) and many or as few hours as they wish. There is not limit to the number of teams a mentor may assist, nor is there a limit to the number of mentors a team may work with. (Minimum age = 18)

Team Assistants (optional):
Team assistants are adult volunteers who provide non-technical support and encouragement to the team (assisting with scheduling, set-up, snacks, etc.). Team assistants must register with the StellarXplorers Program Office and complete a background check. (Minimum age =18)

Registration Fees

The registration fee for the first team registered at an organization is $200.* 
The registration fee for an additional team is $100.
​The fees for and single organization's third, fourth, and fifth teams registered are waived. 


*Teams created in the registration system (with team director verification) prior to August 1 receive a 20% discount. The rate is locked-in until payment is due.

Additionally, 
  • Fees are automatically waived for JROTC, Civil Air Patrol, and Naval Sea Cadet Corps teams
  • Fees are waived upon request for Title I School (must provide proof of status – e.g. signed letter from school administrator)
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​Payment is due by November 15, 2022 (purchase order, check, and credit card are all accepted)
Download AFA's W-9

Rules and Training

View the STLX Rules Book
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use the free training resources
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StellarXplorers is designed for any student, regardless of their prior space or orbital mechanics knowledge. Use our free training materials to prepare for the competition. 

Additional instructions for competition preparation are emailed directly to team directors prior to each round.

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  • Home
  • About
    • AFA Aerospace Education
    • Contact Us
  • Competition
    • Register
    • StellarXplorers IX (2022-2023)
    • Training Materials
  • StellarCamps
    • Host a Camp
  • Media
    • Outreach Materials
    • StellarXpress Newsletter
    • News & Press Releases
    • Videos
  • Sponsors
    • Become a Sponsor
  • STLX Portal