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- 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
- Cest 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
- Three Ways Satellites Help Us Understand Our Environment
Learn about three ways that satellites have led to a better understanding of how we affect our environment
- 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
- Echo 1 Communications Satellite - National Air and Space Museum
Launched in 1960, Echo 1 was designed to explore the new field of communications via space Its design was remarkably simple: Essentially a large balloon, measuring 30 meters (100 feet) across, the satellite provided a reflective surface in space Radio signals directed at Echo from one location on Earth "bounced" to another By the time Echo 2 was launched in 1964, other types of
- 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
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