NEWS 19 March 2025 A Chinese team has transmitted quantum-encrypted images a record 12,900 kilometres. Researchers have broken a distance record in quantum communication by sending a secret encryption key nearly 13,000 km from China to South Africa, using a cheap, lightweight ‘microsatellite’. Access options Access Nature and 54 other Nature Portfolio journals Get Nature+, our best-value online-access subscription $29.99 / 30 days cancel any time Subscribe to this journal Receive 51 print issues...