sentences:  Opening in June 1990 as the Christa McAuliffe Planetarium, in 2001 it became the official state memorial to Admiral Alan Shepard as well.In 2009, the organization more than quadrupled in size when it added a science museum focused on astronomy, aviation, earth and space science; it was renamed the McAuliffe-Shepard Discovery Center.The grand opening was on March 6, 2009.