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Published on Jul 15, 2009
That's one small step for man, one giant leap for mankind... July 20th it will be 40 years since Neil Armstrong uttered those first words from the surface of the Moon. As NASA celebrates the monumental anniversary, University of Minnesota physics professor Robert Pepin, who was a science adviser for the Moon missions, gives his thoughts on the significance of the event and what we learned about the earth and sun from visiting the moon.
This video is part of the Expert Perspectives series at the University of Minnesota.