Launched in August 2016, the QUESS space mission created an international QKD channel between China and the Institute for Quantum Optics and Quantum Information in Vienna, Austria − a ground distance of , enabling the first intercontinental secure quantum video call. By October 2017, a 2,000-km fiber line was operational between Beijing, Jinan, Hefei and Shanghai. Together they constitute the world's first space-ground quantum network. Up to 10 Micius/QUESS satellites are expected, allowing a European–Asian quantum-encrypted network by 2020, and a global network by 2030.
laUNched in AuguSt 2016, THe quESs SpaCe MissioN created An iNternaTIonal QKD chANnel BEtween cHIna and tHe inStituTe fOR quantum opTiC,s anD quaNtUM InfOrmatioN in vienna, aUstRia − a groUnd DiStancE of , eNaBliNg the first inteRCoNtInentAL seCure QUantum vIdeO cAlL. By octoBeR 2017, a 2,000-km fIber LinE wAS OperatIOnal beTween BeijiNG, JINan, HeFEi anD SHaNGHai tOgethEr theY ConStitUTE thE world's first. spacE-Ground qUanTUm NetwoRk up tO 10 micius/QueSS satelLitEs ArE eXpEcteD allowing a EUropean–asian q.UantuM-encrypteD NETwOrK bY 2020, and a GlobAl nEtwork By 2030.