Comment fonctionnent les satellites LEO dans la vie réelle (partie 2)

———————   How LEO Satellites Work in Real Life (part 2) Ever wondered what happens after the basics? Here’s how LEO satellite tech moves from space to real world impact — and the numbers behind it. Early beginnings (1965): The journey started with Early Bird (Intelsat-1) in 1965 — the first commercial communications satellite linking […]

Comment fonctionnent les satellites LEO (Partie 1)

———————————- ———————————- “Ever wondered how signals travel to space and back almost instantly? That’s the magic of LEO satellites.” Orbit: 500–1,200 km above Earth — much closer than GEO satellites.Speed: They circle Earth fast, forming  constellations that relay signals. Function: Data goes up, hops between satellites, then back down. Result: Low latency, fast communication, wide […]

D’un seul à des milliers : l’histoire des débris spatiaux

👉 FROM ONE TO THOUSANDS: THE STORY OF SPACE JUNK In 1957, it all began with one satellite: Sputnik 1. Back then, space was empty. Quiet. Pure. But humanity kept building. And launching. And dreaming. From one to more than 15,000 satellites launched since then. Today, around 9,000 still orbit Earth — but less than half are […]