02. How big in length and width are satellites? How heavy? (A K2S Question)

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Satellites come in all shapes and sizes. Weighing about 180 pounds, Sputnik 1 was a shiny aluminum ball just two feet in diameter, with four "sweptback" antennas. Inmarsat 4, a more recent communications satellite, weighs 100 times more, has a width of 150 feet with its solar cells extended, and is as tall as a house.


Answer provided by Derek Webber


Image:K2S logosmall.jpg Question and Answer extracted from the book Kids to Space - by Lonnie Schorer