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60 years ago today, the Soviet Union launched the Sputnik I satellite into space. scifri.me/uha6mx 
The world's first artificial satellite was about the size of a beach ball & weighed just 183.9 lb. But its implications were enormous.
To Americans, Sputnik represented a crisis. It traveled at 18,000 mph—faster than it would take to send a missile from Russia to the U.S.
