Jeff Bezos, founder and CEO of Amazon.com and soon-to-be owner of The Washington Post, last month in Sun Valley, Idaho. Kevork Djansezian/Getty Images hide caption

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Jeff Bezos, a tech titan and Amazon founder, purchased a venerable newspaper, The Washington Post. Richard Brain/Reuters/Landov hide caption

itoggle caption Richard Brain/Reuters/Landov

Apollo 11 climbs toward orbit after liftoff on July 16, 1969. In 2 1/2 minutes of powered flight, the S-IC booster lifts the vehicle to an altitude of about 39 miles, some 55 miles downrange. NASA hide caption

itoggle caption NASA