NASA Administrator T. Keith Glennan shows then-Senator Lyndon B. Johnson, Chairman of the Senate's Aeronautical and Space Sciences Committee, a sample of the aluminized Mylar film used to fabricate the 100-foot-diameter, automatically inflatable Echo I balloon. Project Echo was the 's first passive communications satellite that was launched into orbit on August 12, 1960 at 5:39 am EDT. Image # : glennan_01

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NASA Administrator T. Keith Glennan shows then-Senator Lyndon B. Johnson, Chairman of the Senate's Aeronautical and Space Sciences Committee, a sample of the aluminized Mylar film used to fabricate the 100-foot-diameter, automatically inflatable Echo I balloon. Project Echo was the 's first passive communications satellite that was launched into orbit on August 12, 1960 at 5:39 am EDT.

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Size: 2036px × 1639px
Photo credit: © ART Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: balloon, communications, echo, glennan, johnson, lbj, lyndon, passive, satellite