The Ground Sphere projects have a rich history at Mach 30, starting with a question from Mach 30 contributor Aaron Harper leading all the way to the current generation Ground Sphere intended for receiving signals from the International Space Station.
<insert brief history (with photos) of the first GS that Aaron built and shipped to New Space>
<insert continued story (with photos and link to project) of the SkyCube GS>
<insert story and goal of Mk 3 (with logo), happy hour, Perigee, etc>