On this day: July 21

Posted: 12:50 AM EDT Jun 18, 2014   Updated: 2:00 AM EDT Jul 21, 2015

The Scopes Monkey Trial ends, Neil Armstrong and Buzz Aldrin bid the moon adieu, Hank Aaron joins Babe Ruth in an exclusive club, and the last space shuttle lands, all on this day.

OTD July 21 - space shuttle program
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NASA

2011: NASA's Space Shuttle program ends with the morning landing of the space shuttle Atlantis at Kennedy Space Center in Florida to wrap up mission STS-135. The nearly 13-day mission, which delivered components to the international space station, was the 135th mission flown by the space shuttle program.

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