The National Nuclear Security Administration announced on May 19, 2025, that production of the first B61-13 variant nuclear bomb has been completed at the Pantex plant in Amarillo, Texas. The ...

The bomb will be made by a B61-7 warhead inside a B61-12 casing, providing another option with a higher yield. The U.S. Department of Defense announced the development of yet another, more ...

The B61-13 is the latest variant of the Cold War-era B61 gravity bomb, featuring a higher maximum yield than its predecessor, the B61-12.

The new weapon would be the 13th version of a line of nuclear gravity bombs called B61. Here's what to know about its purpose.

A new U.S. nuclear bomb under development could have a devastating impact if launched over Russia's main cities.

The Air Force now has the B-61-12 tactical nuclear bomb ready for operational use on its 20 B-2 Spirit stealth bombers.

The bomb’s yield will be higher than its older sibling, the B61-12, contributing to its utility against certain harder and large-area targets. Owing partly to these advantages, the number of B61-12s ...

Experts say this new higher-yield nuclear bomb appears intended to pave the way for retiring the older B83 megaton bomb.

The Pentagon announced that it will pursue congressional authorization for a nuclear bomb that will be 24 times more powerful than the bomb dropped on Hiroshima, Japan.