HUNTSVILLE, AL (WAFF)- Teachers and staff at Chaffee Elementary in Huntsville could barely keep a straight face on Tuesday. They were preparing to surprise Chaffee's 5th graders with a free trip to space camp at the U.S. Space and Rocket Center. Space and Rocket Center CEO Dr. Deborah Barnhart joined the Huntsville Elks Lodge for the big reveal. "They'll get out of school for a week and...