This is the eighth in an exclusive series of 50 articles, one published each day until July 20, exploring the 50th anniversary of the first-ever Moon landing. You can check out 50 Days to the Moon ...
The Sputnik 8K71PS rocket streaks across the sky over Montreal on its way to deliver Sputnik 1 into orbit. Scientists from the California Institute of Technology track Sputnik 1 from a mobile van.
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