For the first time in more than half a century, there are no binding restraints on the buildup of the largest nuclear forces ...

The Pentagon and the Energy Department have airlifted a small nuclear reactor from California to Utah, demonstrating what ...

For the first time, a US Air Force C-17 Globemaster III has airlifted a complete, 5 MW nuclear reactor and reassembled i.

In a world first, the US Department of Defense (aka the Department of War) airlifted a complete 5-MW nuclear reactor using a ...

Add Yahoo as a preferred source to see more of our stories on Google. The Energy Department and Air Force in August successfully carried out the first tests dropping unarmed B61-12 nuclear gravity ...

President Trump said on Thursday that the U.S. would begin testing nuclear weapons again for the first time in decades. “We’ve halted many years ago, but with others doing testing I think it’s ...

The Department of Defense (DOD), which is “using a secondary Department of War designation,” under Executive Order 14347 dated September 5, 2025, is in the process of modernizing U.S. strategic ...

Lockheed Martin is responsible for developing the Mk21A reentry vehicle for the upcoming Sentinel ICBM. This week, the Lockheed Martin Corporation received a $453.9 million contract modification for ...

MOSCOW(AP) — Russian President Vladimir Putin on Wednesday directed drills of the country’s strategic nuclear forces that featured practice missile launches, an exercise that came as his planned ...

China—the world’s third-largest nuclear power, behind Russia and the United States by number of warheads—is unlikely to increase transparency around its buildup in the new year, following this year’s ...