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Cest quoi un satellite - espace-sciences. org 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 ! Des satellites artificiels fabriqués par l'Homme et envoyés dans l'Espace au moyen de fusées tournent également autour de la Terre
Applications Satellites | National Air and Space Museum In the tense years of the Cold War, applications satellites evolved down two separate paths: one devoted to national security needs, the other to civilian interests
TIROS Meteorological Satellite - National Air and Space Museum TIROS (Television Infrared Observation Satellite) I, launched in April 1960, was the world's first weather satellite TIROS imaged large swaths of the Earth's surface, allowing forecasters and scientists to see directly for the first time the large-scale features of our planet's weather systems
Communications Satellites | National Air and Space Museum In 1958, President Dwight D Eisenhower used SCORE—the first communication satellite—to broadcast a Christmas message: "Through this unique means I convey to you and all mankind, America's wish for peace on Earth and goodwill toward men everywhere " The SCORE (Signal Communications by Orbital Relay Equipment) satellite operated for 35 days
Three Ways Satellites Help Us Understand Our Environment A decade later, satellite imagery revealed a huge, depleted area of the ozone layer over Antarctica This confirmed scientists' theory and provided startling evidence of human impact on a global scale In 1987, production of these hazardous gases was banned by a unanimous United Nations treaty
Ariel 1 Satellite - National Air and Space Museum This is a replica of Ariel-1 satellite, the world's first internationally conceived and executed satellite The flight model was designed and built by NASA's Goddard Space Flight Center (GSFC) and carried six British experiments designed to study the ionosphere and its relationship to solar radiation, including cosmic ray, solar emission and
Satellite, Communications, Sirius FM-4 - National Air and Space Museum This satellite represents the first generation of space-based, commercial radio service developed by Sirius Radio, a U S company (now Sirius XM Radio) Designed in 1987 and initiating service in 2001, the Sirius satellite system consisted of three satellites that provided more than 150 digital music and audio channels to North America
Venus | 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
Satellite | Espace des sciences 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 notre planète
Satellite, Explorer 1, Payload Section - National Air and Space Museum The resulting Explorer 1 satellite was successfully launched and placed into Earth orbit on January 31, 1958 The satellite transmitted data on micrometeorites and cosmic radiation for 105 days Data from this and two subsequent Explorer satellites led to the discovery by James Van Allen of a belt of intense radiation surrounding the Earth