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Cape Canaveral, Fla. -- Hall of Fame astronaut Charlie Duke thanks the audience for their applause at the 2011 U.S. Astronaut Hall of Fame induction ceremony at NASA's Kennedy Space Center Visitor Complex in Florida. Hall of Fame astronauts and visitors gathered to honor 2011 inductees Karol "Bo" Bobko and Susan Helms. During his 19 years in the astronaut program, Bobko flew on three space shuttle missions and logged more than 386 hours in space. He served as pilot during the first voyage of space shuttle Challenger aboard STS-6 in April 1983 and as commander during the maiden flight …
