Our Competition

The StellarXplorers National Space Design Competition requires an adult to register as a Team Director before any students are permitted to compete. Having only one adult Team Director of record for each team is a non-negotiable requirement. An adult may serve as Team Director for up to five teams and is responsible for the proper supervision of all their teams during all competition-related activities. The Team Directors retain the authority and responsibility to control their teams, including access to other people. The Team Director is the ultimate authority concerning who works with their team. A Team Director may assist other teams only as a registered Mentor or Team Assistant.

STLX VIII Finals is planned to be in-person, and it will be hosted at Space Center Houston, TX.

Before proceeding to the SportsEngine registration page, we ask that you take a moment to fully review the contents of this page, especially the instructions on how to navigate our registration system. Team directors, regardless of previous participation in the competition, please use the link one time for registration.


Need to update your team roster?

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Competition Team

All students may compete provided the team is fielded by one of the organizations below. Although intended primarily for high school-aged students, other ages may compete on an equal basis. There is no limit on the number of teams that an organization can field. Teams consist of 2-6 competitors per team. Please refer to the Rules Book for more information regarding Composite Teams or other organizations.

  • Public School
  • Private School
  • Home School
  • Scouting Unit
  • Boys and Girls Club
  • Civil Air Patrol
  • U.S. Naval Sea Cadet Corps
  • Army JROTC
  • Navy JROTC
  • Marine Corps JROTC
  • Air Force JROTC
  • Magnet School Charter School
  • Parochial School
  • State-Chartered Virtual School
  • An adult over 18 years of age on or before the Team Director Registration deadline.
  • Not a Competitor or high school-level student
  • Not a member of the StellarXplorers Program Office
  • Vetted and approved to work with minors by a Verification Official
  • Registered as the Team Director for five teams or fewer
  • Agrees to abide by the Standards of Conduct (Rules Book, Appendix I).

Team Directors

Team Directors are not required to have prior experience with the competition, nor do Team Directors need to have experience with STK 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.

Team Directors may work with their respective teams during practice rounds, and remain responsible for team’s safety and integrity of the competition during the qualifying rounds, but they may not assist teams in any aspect of preparing their competition responses during the qualifying rounds

Before a Team Director can officially serve in the role, they must be vetted and approved to work with minors by Verification Officials – these are usually school officials or individual supervisors. For more information on the verification process, please review the Rules Book.

Starting up a student organization can be challenging, but it is important to keep your goals realistic and start small. Once you have a strong foundation with one or two teams, you can continue to expand your organization! Since teams are composed of 2 to 6 competitors per team, you do not need many people to get started.

How to Register


StellarXplorers VIII will use SportsEngine for Team Directors (TD) to register their organization and team(s):

TDs only need to register their organization (school, CAP unit, etc) for STLX VIII one time using the below Registration Button at bottom of page.

All TDs must register their teams for through the one-time link, regardless of previous participation in the competition.

Once the organization is initially registered for STLX VIII, TDs can add 1-5 teams using the procedures found in the ``Edit Team Information`` Pull Down Menu.

Procedures to review, add, and edit teams are similar to last year and procedures are found in the ``Edit Team Information`` Pull Down Menu.

The link to the registration form is located at the bottom of the page.

Team directors, please use the link one time for registration.


$200 for 1st high school team, $100 for 2nd high school team, no fee registration for 3rd, 4th and 5th high school teams

After you Register your Organization and and Team/s, you will be given a balance based on $200 per registered team.  Please DO NOT pay on the Registration Form.  You will be provided an Invoice by StellarXplorers requesting payment shortly after you register via email for the correct amount based on early registration, Title I &/or Service Team/s Discount, and/or # of Teams Registered.

After receipt of Invoice, payment must be made by November 15, 2021 (we accept payment by purchase order, check, credit card)

Teams created in the registration system with TD verification before August 1, 2021 receive a 20% discount (discounted rate is locked-in with final payment still due by Nov. 15)

Fees waived upon request for Title I School (must provide proof of status – e.g. signed letter from school administrator)

Fees automatically waived for JROTC, Civil Air Patrol, and Naval Sea Cadet Corps teams

Navigating SportsEngine

Please read through the tabs from left to right for step-by-step instructions.

Again, TDs should only use this link one time. Once your organization is registered for STLX VIII, you should use the “Edit Team Information” procedures to make any changes.

Select how many teams you plan to register during this initial registration. If you plan to add or withdraw teams at a later date, please notify the StellarXplorers staff at before making these changes, using the “Edit Team Information” procedures.

We have added the option to name an Alternate Team Director. If the TD identifies that individual during the initial registration, both the TD and Alternate TD will be verified and either individual can supervise a competition round throughout the year. For each competition round, however, only one individual (TD or Asst TD) will receive the competition emails so if you plan to use the Alternate Team Director, you MUST notify us at prior to the beginning of the competition round.

You can also add an Alternate TD later in the year using the “Edit Team Information” procedures but you must notify us at so we can verify this individual.

For Organization Name, please only put School Name here (if JROTC) and then identify your organization as JROTC under Organization Type. If your school has both JROTC and non-JROTC teams, email us and tell us which teams are which type. If you are a CAP team, please use your Unit name, not your Unit number.

For Verification Officials, if you are a JROTC organization, you must use a school official, like Principal and Assistant Principal, and not a higher ranking JROTC instructor.


During this initial (and only time used) organization registration process, you can add team members here.  If you do not know team members at this time, just hit Continue and go to next page.  Most StellarXplorers team rosters are finalized shortly after the academic school year begins.  Even if you only have 1 team, you must hit Continue at the bottom of all five pages.  There are 5 pages for the up to 5 potential STLX teams each Team Director may coach.  You can review, edit, and change Team Rosters at a later date using the “Edit Team Information” procedures.

During the initial (and only time used) organization registration, you can add 1-2 Mentors here. If you do not have a Mentor at this time, just hit Continue at the bottom of the page. You can review, edit, and change Mentors using the “Edit Team Information” procedures.

Select Review to show all your information added at this time. You can make any changes at this time. Once satisfied, select Registration Complete. You are now finished completing your Organization Registration for STLX VIII. Any later changes MUST be made using the “Edit Team Information” procedures.

If you have questions, contact the StellarXplorers team at

Register Now

Join the StellarXplorers National Space Design Competition today!