On Saint Patrick's Day in 1958, the U.S. Navy launched Vanguard 1, the first solar-powered satellite and the oldest ...
Astronomy on MSN
March 17, 1958: Vanguard 1 blasts off
America's second satellite, Vanguard 1, was launched into space on March 17, 1958. And though it only blasted off some six months after the Soviet's Sputnik satellite, Vanguard 1 still remains in ...
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