We explored a long-abandoned underground nuclear aircraft laboratory, once a site of cutting ... we uncovered remnants of secret experiments and long-lost technology. Join us on this incredible ...

Captain Robert Salas was the on-duty commander of a secret underground launch control facility when the alleged incident happened on March 24, 1967. He said he was in charge of ten nuclear ...

in the Black Hills of South Dakota is America’s Underground Lab – with cutting-edge experiments in biology, geothermal energy, engineering, and physics. Experiments at SURF include the world ...