On May 17, 7PM-9PM, the Christa McAuliffe Center at Framingham State University will host a free presentation on the APOLLO project — about current research using lasers and mirrors that were left on the moon by Apollo missions.  Prof. James Battat of Wellesley College will explain his research on precision tests of gravity using this equipment. Registration is required. Location is the Framingham State University Planetarium (100 State Street, Framingham).