Imagine sending massive amounts of data across the globe in seconds, not through cables or crowded radio frequencies, but with lasers connecting satellites and ground stations. This is the vision behind Hydron, the high throughput digital and optical network, led by the European Space Agency (ESA). Hydron aims to establish a fully optical satellite communications network that will transform how data moves through space and back to Earth.

Hydron is ESA’s initiative to build a high-performance optical communications network in multiple orbits for future applications like 6G connectivity from space or resilience missions integrated seamlessly with terrestrial fibre-based implementations.

Hydron mission patch
3 terabits per second
60 % growth expected by 2030 in satcom market
>10 European and Canadian companies collaborating
HydRON: Fibre in the sky




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HydRON optical communication for broadband in space
HydRON (High thRoughput Optical Network) - Artist's impression