The non-nuclear test was an intentional effort to sharpen the methods for detecting when another country tests a nuclear weapon underground. Search for: Science ...

Biden Official Weighs In On Underground Nuclear Bomb Test Rumors. Published Nov 15, 2023 at 4:07 PM EST Updated Nov 16, 2023 at 5:40 PM EST. By .

Crews completed the first successful lift and lowering of a steel beam a mile underground for the Deep Underground Neutrino Experiment at the Sanford Underground Research Facility in South Dakota.