Israel's best chance at destroying the facility at Fordo could lie with a U.S.-produced bomb that's so heavy that it can only ...

The International Atomic Energy Agency (IAEA), the intergovernmental body that assesses compliance with the Nuclear Nonproliferation Treaty, was barred from going within about 40 miles of the affected ...

The US Air Force says the GBU-57 bunker-buster bomb can penetrate up to 200 feet below ground before exploding.

Trump confirmed the U.S. used bunker buster bombs to strike Iran’s Fordow site, alongside missile attacks on Natanz and ...

The U.S. bombers that attacked Iran's nuclear sites dropped GBU-57 Massive Ordnance Penetrators, bunker-busting bombs designed to destroy hardened underground targets, for the first time in warfare. A ...

Seven B-2 stealth aircraft dropped a total of 14 GBU-57 bunker-buster bombs on Iranian nuclear sites last weekend.

The US Air Force’s 30,000-pound GBU-57/B Massive Ordnance Penetrator (MOP) was used for the first time in operational strikes against Iranian nuclear facilities this past weekend, marking a ...

The U.S. Air Force has just taken delivery of the first GBU-57A/B (Massive Ordnance Penetrator). It weighs 30,000 lb and will penetrate 200 ft of hardened concrete BEFORE it goes off. If you are ...

Known officially as the Massive Ordnance Penetrator (MOP), the GBU-57 was designed to attack hardened concrete buildings, particularly those underground. The bomb is 20.5 feet long with a diameter ...

Although the US has sold less powerful bunker buster weapons to Israel, it has declined to share the Massive Ordnance Penetrator with any of its allies. “I’ve seen 500-pounders, and they’ll ...

The GBU-57s, or the Massive Ordnance Penetrator (MOP for short), were carried by a fleet of B-2 bombers, marking the first time the munitions were used in combat. U.S. forces struck three sites ...

The "massive ordnance penetrator," or MOP bomb, will be the largest conventional bomb in the U.S. arsenal. It is now undergoing testing and is slated to come on line by mid-2010.