The Smithsonian’s National Air and Space Museum has received a $5 million sponsorship from GE Aviation to expand its “Explainers” program over the next five years. Explainers are high school and college students who perform educational demonstrations in museum galleries and assist with events, such as family days. The sponsorship will allow the museum to expand activities at its flagship building in Washington, D.C., and its Chantilly, Va., location, the Steven F. Udvar-Hazy Center. It will also help establish a new Explainers offering: online video conferencing to schools. Initially, the online conferences will be offered exclusively in selected public schools in Cincinnati.