FILE - In this Feb. 8, 1963 file photo, astronaut John Glenn sits with models of the Mercury spacecraft atop its launch rocket and a lunar module, representing the past and the future of space exploration as he talks about the first anniversary of his historic flight. (AP Photo/Ed Kolenovsky, File)

Associated Press
FILE - In this Feb. 8, 1963 file photo, astronaut John Glenn sits with models of the Mercury spacecraft atop its launch rocket and a lunar module, representing the past and the future of space exploration as he talks about the first anniversary of his historic flight. (AP Photo/Ed Kolenovsky, File)
FILE - In this Feb. 8, 1963 file photo, astronaut John Glenn sits with models of the Mercury spacecraft atop its launch rocket and a lunar module, representing the past and the future of space exploration as he talks about the first anniversary of his historic flight. (AP Photo/Ed Kolenovsky, File)
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