A satellite is an object that is in orbit around an object in space of a larger size. Things such as the Earth's Moon or Pluto's Charon are natural satellites. Humans have also created artificial satellites—human-made machines and spacecraft in orbit around our Earth or other objects in our galaxy. These types of satellites have fundamentally changed humanity—such as connecting us with ...
C'est quoi un satellite ? GRANDES QUESTIONS C'est un objet qui tourne autour d'une planète. Il peut tourner autour de la Terre … ou d'une autre planète ! La Lune est le seul satellite naturel de notre planète Terre. Mais par exemple, Mars en possède 2 et Jupiter plus de 60 !
Learn about how a communications satellite works and how it helps us to connect to each other around the world.
Telstar, launched in 1962, was the first active communications satellite: it received microwave signals from ground stations and retransmitted them across vast distances back to Earth.
This satellite is the heart of a space-based communications system called Iridium. Conceived, designed, and built by Motorola, the Iridium system provides wireless, mobile communications through a network of 66 satellites in polar, low-Earth orbits. Inaugurated in November 1998, under the auspices of Iridium LLC, this complex space system allowed callers using hand-held mobile phones and ...
Le 4 octobre 1957 marquait le lancement du satellite Spoutnik. Cinquante ans après, l'équipe du planétarium fête l'événement durant quatre séances.
Learn about three ways that satellites have led to a better understanding of how we affect our environment.
Dans les Côtes-d’Armor, le site Météo-France de Lannion reçoit des données satellites du monde entier. Des informations indispensables pour la météo…Mais pas que !