Visitors to the NASA Langley centennial open house experience the 14X22 subsonic wind tunnel Saturday October 21, 2017. The tunnel’s fan has a 40 foot diameter and is powered by a 12,000 horse power motor. MORE PHOTOSLucas Moten gets up close and personal with a rover at the kid zone during NASA Langley’s centennial open house Saturday October 21, 2017. The public was invited to tour the facilities and experience some of the technology under development at the historic facility. VIDEO Filed under: Daily Press Photographers