Columbia businessman realizes dream by working with NASA

Tuesday, December 27, 2011 | 4:40 p.m. CST

COLUMBIA — Greg Heifner began to tear up as he walked through the halls of NASA's Kennedy Space Center at Cape Canaveral, Fla., in late November. He pinched himself to make sure he wasn't dreaming as he passed walls covered with photos of his childhood heroes, including pioneering astronauts Neil Armstrong and Gus Grissom.

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