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.

Since super fuse-armed 100 kt nuclear warheads can now replace the much higher-yield 475 kt W-88 warheads for attacks on silo-based ICBMs, the W-88s are now free for other missions, ...

The new Sentinel nuclear warhead program is 81% over budget and is now estimated to cost nearly $141 billion, but the Pentagon is moving forward with the program, saying that given the threats ...

U.S. officials say Putin remains within the limits set by the treaty despite his 2023 "suspension" of the pact that holds Russia and the United States to deploying 1,550 strategic nuclear warheads ...

WASHINGTON — The new Sentinel nuclear warhead program is 81% over budget and is now estimated to cost nearly $141 billion, but the Pentagon is moving forward with the program, saying that given ...