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 …

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 …

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.

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 …

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 …

The U.S. Air Force began developing this air-launched antisatellite missile (ASAT) to destroy enemy satellites after the USSR demonstrated its ability to attack satellites in space. At the tip of this two …

Military reconnaissance is an operation to obtain information relating to the activities, resources, or military forces of a foreign nation or armed group. It uses balloons, aviation, and space technology …

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.

Project Vanguard represented the American commitment to place a satellite in orbit as part of its contribution to the International Geophysical Year. The project was managed by the Naval Research …