The astronauts of Apollo 11, Neil Armstrong, Edwin ''Buzz'' Aldrin (R) and Michael Collins (L), received medals for their pioneering flight and stand in front of the command module Columbia which carried them on their historic flight, at The Air and Space Smithsonian 30 years after they first walked on the moon, in Washington, in this July 21, 1999, file photo. REUTERS/Jamal Wilson/Files
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