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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 !
Quelle est la différence entre une étoile et une planète On l’appelle « l’étoile » du Berger, mais Vénus est une planète Elle est très lumineuse : quand la nuit tombe et qu’elle est visible au-dessus de l’horizon, Vénus brille plus que toutes les étoiles ! Comme elle est près du Soleil, elle reflète beaucoup sa lumière Cette planète fait partie de notre Système solaire La preuve ? Au fil des nuits, elle se déplace lentement
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
Jupiter - National Air and Space Museum 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 satellites
Ozone Hole Diagram - National Air and Space Museum This diagram shows the increase in size over time of the hole in the ozone layer The “ozone hole” is a region in the atmosphere where the ozone level is dangerously low But in images generated from satellite data, a low-ozone area looks like a hole The ozone hole over Antarctica changes through the season It grows in July as winter begins and reaches its maximum annual size in late
Sputnik and the Space Age - National Air and Space Museum 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
Explorer - National Air and Space Museum The satellite is displayed in the Milestones of Flight Gallery at NASM Explorer-1 was the United States' first successful orbiting satellite Following the failure of Vanguard in December 1957, the JPL- ABMA group was permitted to adapt the Jupiter-C reentry test vehicle to carry an instrumented satellite into earth orbit
Model, Communications Satellite, Telstar - National Air and Space Museum AT T used the satellite to test basic features of communications via space, including the feasibility of transmitting telephone and television signals and the effect of Van Allen belt radiation on spacecraft components During its operational life, Telstar 1 facilitated over 400 telephone, telegraph, facimile and television transmissions
Corona Film Return Capsule - National Air and Space Museum This is the second film return capsule recovered on May 25, 1972 from the last CORONA photoreconnaissance satellite mission Developed by the U S Air Force and the Central Intelligence Agency, the CORONA satellites were designed primarily to furnish imagery of the Soviet Union that manned aircraft could not provide for various reasons The film in the cameras was reeled onto the spools in