The world runs on invisible satellite navigation signals: they fuel our society, generate economic growth and are integral to our security. But they can fade or vanish.

A pivotal step for more robust navigation is expanding to a system including a fleet of satellites in low Earth orbit, operating in a range of signals and frequencies.

ESA’s LEO-PNT demonstrator mission will test the potential of such a system in providing significant augmentation and diversity to Galileo and other existing systems, increasing resilience and enabling new services to places where today’s satnav systems cannot reach.