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Echo "Sub-Satellite"

Before launch of the Echo 1 satellite in 1960, engineers subjected this Project Echo "Sub-Satellite" to many tests. Here it is shown prior to tests to determine the capacity of the 20-inch sub-satellite to withstand the high temperature of direct sunlight in space. Results indicated that the aluminum-covered Mylar plastic would effectively reflect the dangerous heat. (Date: 7/31/1957)

 

Credit: NASA/Langley Research Center

 

Read more on the NASA APPEL website.

 

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Taken on August 23, 2010