This may eliminate the U.S. ability to deliver the Massive Ordnance Penetrator (GBU-57/B or MOP) which is by far the most effective U.S. conventional weapon against hard and very deeply buried targets ...

The US military is providing new details about its decade-long effort to develop the massive bunker-busting bombs used in recent strikes against Iranian nuclear facilities. That raid saw seven ...

The US Air Force has awarded a contract for the design of a next-generation bunker-buster bomb. The bomb will eventually replace the 30,000-pound GBU-57 Massive Ordnance Penetrator, or MOP. The MOP ...

A GBU-57, or the Massive Ordnance Penetrator bomb, at Whiteman Air Base in Missouri, In a photo released by the U.S. Air Force. (U.S. Air Force/AP) The U.S. bombers that attacked Iran's nuclear sites ...

The infographics were everywhere in the run-up to Sunday's early-morning strike on Iran's nuclear facilities by American stealth bombers. They depicted America's bunker-busting bomb, known as the ...

Key Points and Summary - The B-2 Spirit stealth bomber demonstrated its enduring relevance and capability during the June 2025 "Operation Midnight Hammer" strikes against Iranian nuclear sites.

A Boeing GBU-57 Massive Ordnance Penetrator in testing. Credit: Defense Department For the Defense Threat Reduction Agency (DTRA) and the U.S. Air Force, devoting the time and money to build an ...

Details about the future NGP are limited, but current speculation suggests it could be roughly similar in size to the 30,000-pound “Massive Ordnance Penetrator.” The United States Air Force used its ...

The 30,000-pound MOP bombs likely did not achieve the overwhelming success that the Trump team is claiming. Now there aren’t enough of them to try again. America has a 30,000-pound bomb known as the ...