The B61 is America’s nuclear gravity bomb, and its upgraded variant will be certified on the B-2 the future B-21 , America’s F-15, and F-16 fighter aircraft, and British and German Tornado ...

MINOT AIR FORCE BASE, N.D. — When the Trump administration’s budget request rolled out Feb. 10, eyebrows shot up within the nuclear community at the mention of a previously unknown warhead ...

Like the others, it utilized a Thor rocket with a W49 nuclear warhead. It took off July 9, 1962. The rocket shot through the atmosphere, detonating roughly 250 miles above the surface.

Also in 1962, as part of a series of high-altitude nuclear experiments, a Thor rocket carried a W49 thermonuclear warhead approximately 250 miles into the exoatmosphere.

A federal laboratory in New Mexico was planned to lead a program to modernize the U.S.’ nuclear arsenal, ramping up production of warhead triggers by 2030. Los Alamos National Laboratory (LANL ...

The replacement warhead programme would itself replace an ‘advanced concepts’ project, which has been criticized as a step toward development of new nuclear weapons (see Nature 428, 455; 2004 ...

Part of the current effort to maintain a viable U.S. nuclear deterrent is the development of a warhead dubbed the W93, the request for which was first introduced in the President’s 2021 budget ...