05/19/2026
Solestial was founded to deliver abundant energy in space, and today we’re much closer to accomplishing our mission.
We are thrilled to announce that York Space Systems (NYSE: YSS), a leading national defense and commercial prime, has entered into a definitive agreement to acquire Solestial.
Upon completion of the transaction, Solestial will operate as a wholly owned subsidiary of York and continue to serve a broad range of external commercial and government customers.
The acquisition secures a unique technology and critical space solar capability within York’s supply chain through U.S.-based manufacturing and reduces reliance on foreign-controlled materials and manufacturing. Partnering with York allows Solestial to more rapidly expand production to meet exceptional demand, deepen technical integration, and deliver resilient solar to a broader set of missions.
This strategic milestone reflects many years of hard work and dedication from the Solestial team. Thank you. Your efforts have set Solestial apart in a rapidly growing field of space solar companies. Solestial remains the only solar technology that self-heals radiation damage at operating temperatures as low as 65ºC. Our performance has been proven on-orbit and independently verified. We are delivering at volume. Our next chapter, in partnership with a leading prime, is a clear validation of both our technology and the team behind it.
Read the complete press release: https://bit.ly/42HGJt8