Apollo 11 astronaut Buzz Aldrin, left, and Amazon.com and Blue Origins founder Jeff Bezos attend the commemoration for the upcoming anniversary of the 1969 mission to the moon and a gala for Aldrin's nonprofit space education foundation, ShareSpace Foundation, at the Kennedy Space Center in Cape Canaveral, Fla., on Saturday, July 15, 2017. (AP Photo/Alex Sanz)
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