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Internet Search Results
Satellites - National Air and Space Museum
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 ? | Espace des sciences
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 !
Communications Satellites - National Air and Space Museum
Learn about how a communications satellite works and how it helps us to connect to each other around the world.
Telstar - National Air and Space Museum
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.
Communications Satellite, Iridium - National Air and Space Museum
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 ...
Satellite | Espace des sciences
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 cratérisée que celle visible depuis la Terre. C'est comme si la Lune nous avait protégé de la chute de nombreux astéroïdes et météorites qui, sans elle, auraient normalement percuté ...
Le lancement de Spoutnik | Espace des sciences
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 Spoutnik signifie « compagnon de voyage » en russe.
Three Ways Satellites Help Us Understand Our Environment
A young male manta ray with a satellite tag in southern Florida. The tag is attached in a safe manner, so as not to hurt the animal or reduce its ability to swim. Image courtesy of NOAA. From the ozone to underwater life, satellites help us understand our environment. In some cases, satellites enable us to take steps to protect it.
Military Reconnaissance - National Air and Space Museum
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 and has played an important role in our history.
À Lannion, les satellites au bout des antennes | Sciences Ouest
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 !
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