If you're interested in high altitude ballooning, there's an active community around it. https://arhab.org/ https://arhab.org/ https://www.superlaunch.org/ ht

If you're interested in high altitude ballooning, there's an active community around it. https://arhab.org/ https://arhab.org/ https://www.superlaunch.org/ https://www.superlaunch.org/