Memberships are valid for 1 year from date of purchase.
Membership Upgrade Options
Add a child at the Family, Explorer, Voyager or Adventurer-levels for $10 per child; limit two additional children per level.
Add unlimited visits to the Dorrance Planetarium when you add the Planetarium Upgrade; limit one free presentation per visit. Contact Member Services at 602.716.2029 to add these upgrade options.