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 …

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.

Learn about how a communications satellite works and how it helps us to connect to each other around the world.

Le 4 octobre 1957 marquait le lancement du satellite Spoutnik. Cinquante ans après, l'équipe du planétarium fête l'événement durant quatre séances. 50 ans de l'histoire de la conquête spatiale …

Quand nous regardons la Lune, elle nous présente toujours la même face. Grâce aux sondes lunaires, on a pu avoir des images de la face cachée de notre satellite naturel. Cette face est beaucoup plus …

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 …

Apr 8, 2011 · At the National Air and Space Museum I use satellite images in my job to understand changes in the Earth's land surface. Today millions of people are acquainted with satellite imagery …

Oct 3, 2017 · Sputnik, the world’s first human-made satellite of the Earth, was launched on October 4, 1957, marking the beginning of the Space Age and the modern world in which we live today.

SCORE (Signal Communications by Orbital Relay Equipment), launched on 18 December 1958 aboard an Atlas missile, was the first communications satellite.

A natural satellite is a naturally occurring object that is in orbit around an object in space of a larger size. Earth's natural satellite is the Moon, but many objects in our Solar System have multiple natural …