Entangled quantum signals can be beamed from Earth to satellite, paving the way for smaller, cheaper, stronger quantum communication networks

https://www.eurekalert.org/news-releases/1104672

"overcomes signal loss/ interference: atmospheric effects, background light, imperfect alignment... ground-based transmitters have more power/ less maintenance than space-based, generating stronger quantum signals (higher bandwidth)... compact optical unit intercepting photons/ reporting results, rather than complex quantum hardware generating signals, keeping satellite costs/ size down, making approach more practical... quantum internet, continental/ global quantum networks using small, low-orbit satellites"

Related: A fast and high-precision satellite-ground synchronization technology in satellite beam hopping communication
https://www.eurekalert.org/news-releases/1105656