January 31st is a day rife with space anniversaries. On this day in 1958, Explorer I became the first American satellite to reach orbit.
Showing posts with label Explorer I. Show all posts
Showing posts with label Explorer I. Show all posts
Monday, January 31, 2011
January 31 - Explorer I
January 31st is a day rife with space anniversaries. On this day in 1958, Explorer I became the first American satellite to reach orbit.
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