It is feasible to send quantum entangled light signals from Earth to a satellite, paving the way for stronger quantum communication networks

https://www.uts.edu.au/news/2025/11/scientists-reveal-it-is-possible-to-beam-up-quantum-signals

"satellite downlinks limited by hardware size/ power (suitable for just sending secret keys), overcome by first uploading, despite atmospheric interference/ signal loss, then downlinks... greater bandwidth with access to more power/ cooling, lower satellite costs (only re-directs), easier maintenance since at ground... aligns 2 single light particles from separate ground stations to meet on satellite traveling 20,000 km/h... allows quantum computers to plug into global network for massive distributed computations across continents"