Forty years after humans last walked on the moon, two of the men who did it pay a visit to the Adler Planetarium. We hear from the astronauts who made the journey on Chicago Tonight at 7:00 pm. View a photo gallery of the astronauts.

Related Links:

40th Anniversary of Apollo 17 at Adler Planetarium

Chicago Tribune article on Apollo astronauts to have footprints set into concrete at Adler

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