The MOP was developed in the early 2000s as part of a DARPA-led effort created in response to the emergence of Iranian and North Korean fortified nuclear facilities.

The US military did not use bunker-buster bombs on one of Iran’s largest nuclear sites last weekend because the site is so deep that the bombs likely would not have been effective, the US’ top general ...

The deep penetrating bombs that the U.S. dropped into two Iranian nuclear facilities were designed specifically for those ...

The Pentagon on Thursday released an extraordinary number of details about the military's top-secret bombing of Iran's nuclear facilities and its defense of an air base in Qatar.

This weekend's strike on Iran's Fordow Fuel Enrichment Plant used 30,000-pound GBU-57 "massive ordnance penetrator" bombs.

The Pentagon released jaw-dropping footage showcasing how the 30,000-pound heavy-duty bunker-buster bombs that were used ...

Bunker buster bombs are not battlefield munitions. They serve a very specific purpose, with potential returns far outpacing ...

Reaching Iran's most fortified nuclear enrichment site is a challenge, even for the world's biggest conventional weapons.

Israel Iran war: This 30,000-pound (13,600 kg) precision-guided bomb developed by Boeing for the US Air Force is GBU-57A/B also known as the Massive Ordnance Penetrator (MOP).

The Massive Ordnance Penetrator, a precision guided bunker-busting bomb designed to be carried by a B-2 Stealth Bomber, could be the key in taking out Iran’s Fordow enrichment plant.

The Massive Ordnance Penetrator (MOP), officially known as GBU-57A/B, is the US military's most powerful non-nuclear bunker buster bomb. Weighing around close to 14,000 kg, ...