Morehead Planetarium and Science Center in Chapel Hill is offering a membership deal this summer.
Between now and Aug. 31, all new, renewed or gift memberships get an extra month of membership for free. As I've written before, membership to places like Morehead score you a lot of great deals.
In the case of Morehead, that includes free admission; gift shop discounts; parking vouchers; admission benefits to more than 300 science museums around the world; and priority registration and discounts to its summer camps (which might just be worth the cost of a membership right there).
A household membership is $70. That cost is entirely tax deductible. And there are more membership levels. For details, check Morehead's website.