Museum officials say construction on the addition is set to begin in late spring 2014 and be completed by the end of summer in 2015.
The wing will include a gallery showcasing a space shuttle exhibit that features NASA’s first crew compartment trainer. The trainer is a replica of a space shuttle crew station used primarily for crew training and engineering evaluations.
There also will be educational areas for programs based in science, technology, engineering and mathematics.
Private contributions are paying for the project.
Officials say the Dayton-area museum draws more than a million visitors a year.
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