From the previous HN post[1] about it, I was linked to the company's own page[2] which includes a more precise description of the technology. The reflector is i

From the previous HN post[1] about it, I was linked to the company's own page[2] which includes a more precise description of the technology. The reflector is indeed spherical and there is an array of transceivers along the "focal line". [1] https://news.ycombinator.com/item?id=38043955 https://news.ycombinator.com/item?id=38043955 [2] https://www.freefallaerospace.com/nasa-balloon/ https://www.freefallaerospace.com/nasa-balloon/