A DSP Premium Membership allows for unlimited visits to the Discovery Science Place main museum facility for one year as well as reciprocal benefits to participating ASTC passport museums worldwide. The membership is good for a family of six with up to two adults. (Additional children can be added to a membership beyond 4.) Memberships are not applicable for school field-trips, special events such as Maker Faire, or summer traveling exhibits (although discounts do apply). Museum memberships are valid for 1-year from the date of purchase.