The Atomic Testing Museum offers a permanent 8,000 sq. ft. gallery and the ATM Store, a specialty gift shop. Open Monday-Saturday 9:00am-5:00pm a Sundays 1:00pm-5:00pm. Closed Thanksgiving Day, Christmas Day and New Years Day. Admission is $12.00 Adults, $9.00 Seniors, Military, and Students (w/ID), Children 6 and Under and NTSHF Members (w/ membership card) are admitted free.