At 5:30 a.m. mountain war time on July 16, 1945, the world’s first nuclear weapon detonated over a flat, arid stretch of New Mexico desert. The Trinity test, as it was code-named, confirmed that an ...

Oct. 14—In the shadow of a federal government shutdown, the site where the first atomic bomb was tested will not be open to the public this year. Located on White Sands Missile Range, the Trinity Site ...

TASS FACTBOX. On October 30, 2025, US President Donald Trump announced that he had instructed the Department of War to begin nuclear weapons testing because "other countries are doing the same," ...