Keen to explore the incredible vintage aircraft in shadows of twilight and eerily lighted darkness at the Pima Air and Space Museum on a cool summer evening? Well, you can at 5 p.m. on Saturday, July 23, at the discounted price of $10 for adults and free for children under 12. This family friendly event offers hands-on educational activities in all hangars. Pima Air and Space Museum, 6000 E. Valencia Road. For more information and tickets, visit pimaair.org.