Family Membership includes:Free Admission of two adults and all children/grandchildren 18 and younger living at home to the Museum's exhibition halls for one year. Four vouchers for admission to MNS exhibition halls, TI Founders IMAX Theater and Planetarium. Discounts on birthday parties, Discovery Camps and purchases made in the MNS Store and Cafe. Invitations to exhibit previews and exclusive Members-Only events. Reciprocal admission to more than 260 museums through the Association of Science and Technology Centers(ASTC).