#465175. The Atomic Testing Museum and the NTSHF - Las Vegas, NV The Atomic Testing Museum, is an affiliate of the Smithsonian Institution, preserves and presents information and exhibits that describe the U.S. Nuclear Weapons Development and Testing Programs at the Nevada Test Site (NTS) from 1950 until 1992, and the resultant effect on U.S. Policy and Nevada economy over those years. Atomictestingmuseum.org~Site InfoWhoisTrace RouteRBL Check