UPSat is the first, open-source satellite in the world. It is a 2U Cubesat satellite constructed and delivered by Libre Space Foundation. The project was originally started by the University of Patras as part of the QB50 mission with ID GR-02.
The UPSat mission aspires to be the first completely open-source satellite ever launched, manufactured in Greece, minimizing the usage of COTS components to the absolute minimum. On that scope, all subsystems of the satellite are designed from scratch in an open-source software and hardware way.
The return of investment towards an open-source development way is expected to be significant, kickstarting a new knowledge and building ecosystem around space engineering and technologies.
More information can be found on the official UPSAT website.