Buy the Perfect Gift for Less Before Membership Month Ends An annual membership to Sloan Museum of Discovery and Longway Planetarium is the perfect gift for the family that likes to explore and learn together, or the friend who likes new experiences in history and science! Among other money-saving benefits for 2026, memberships will allow free entry to two new special exhibits (Ice Dinosaurs: The Lost World of the Alaskan Arctic Jan. 20-May 3, 2026, and Lost World of Dragons, May 19-Sept. 13, 2026), and a brand new show on the big screen at Longway Planetarium (T.Rex: The Greatest of All Tyrants opening January 27, 2026). Buy your memberships before midnight on November 30 to save! Simply click on the membership level below to buy online and your unique and thoughtful gift will be mailed within five (5) days ensuring it makes it in plenty of time for the holidays. Learn more about all the benefits members receive here, or email Membership Coordinator Matthew Fitzpatrick. Discounted memberships will be on sale through midnight, November 30, 2025. Still have questions about memberships? Call (810) 237-3457. | 
