Monday, February 16, 2015

Tonight's Sky for February 16: Explorer 9 Launched (1961)


It was on this date in 1961 that Explorer 9 was launched into orbit from the Wallops Flight Facility, making the first successful orbital launch from that location. As for the probe itself, it was designed to study the Earth's upper atmosphere and became the first such successful research probe on account of previous failures of similar missions.

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