Aerospace specific software that goes to space or code that just happens to go to space as part of bigger projects? Here are a couple of the former: RTEMS htt

Aerospace specific software that goes to space or code that just happens to go to space as part of bigger projects? Here are a couple of the former: RTEMS https://www.rtems.org/ https://www.rtems.org/ Core Flight System (cFS) https://github.com/nasa/cFS https://github.com/nasa/cFS NASA has a lot of open source projects including a bunch that don't "go to space" but are used in space related projects (check each project for contributor guidelines): https://github.com/nasa/openmct https://github.com/nasa/openmct - web based mission control software https://github.com/nasa/trick https://github.com/nasa/trick - simulation for for all phases of space vehicle development You should check out their github organization for all available projects (https://github.com/nasa https://github.com/nasa). Also, European things as well such as the ESA's github organization: https://github.com/esa https://github.com/esa, and Germany's DLR: https://github.com/DLR-SC https://github.com/DLR-SC. Another good group to check out is TU Delft: https://github.com/tudelft https://github.com/tudelft, https://github.com/tudelft-iv https://github.com/tudelft-iv and others. Not to mention a bunch of open source CFD projects on github that are widely used and other similar tools. Again, not strictly software that goes to space, but you will find more of that too if you search for projects related to those mentioned above.