What is GBU-57?

GBU-57 is a GPS-guided, earth-penetrating strike weapon for use against hard and deeply buried targets.

What is GBU-57?

About GBU-57:

  • It is known as the “Massive Ordnance Penetrator (MOP)”.
  • It is a GPS-guided, earth-penetrating strike weapon for use against hard and deeply buried targets.
  • MOP is one of the most powerful non-nuclear bombs in the world.
  • It is manufactured by Boeing and used by the United States Air Force.
  • It is used to destroy deeply entrenched enemy bunkers such as those concealing a supply of weapons of mass destruction (WMD).
  • Features:
    • The bomb is 20.5 feet long with a diameter of 31.5 inches.
    • Weight: 14,000 kg
    • The warhead case is made from a special high-performance steel alloy that can reportedly penetrate up to 200 feet of concrete.
    • MOP is carried by the B-2 Spirit bomber, which can carry two of the bombs at a time 
    • The bomb is equipped with a delayed-action fuse, allowing the warhead to survive the impact, not detonating until the bomb has stopped traveling underground.

 


Q1) What are Weapons of mass destruction (WMD)?

A weapon of mass destruction is a nuclear, radiological, chemical, biological, or other device that is intended to harm a large number of people.

Source: Amid tensions, US military designs bomb to hit Iran underground nuclear sites I Photos emerge

Latest UPSC Exam 2026 Updates

Last updated on January, 2026

→ Check out the latest UPSC Syllabus 2026 here.

→ Join Vajiram & Ravi’s Interview Guidance Programme for expert help to crack your final UPSC stage.

UPSC Mains Result 2025 is now out.

UPSC Notification 2026 Postponed for CSE & IFS which was scheduled to be released on 14 January 2026.

UPSC Calendar 2026 has been released.

UPSC Prelims 2026 will be conducted on 24th May, 2026 & UPSC Mains 2026 will be conducted on 21st August 2026.

→ The UPSC Selection Process is of 3 stages-Prelims, Mains and Interview.

→ Prepare effectively with Vajiram & Ravi’s UPSC Prelims Test Series 2026 featuring full-length mock tests, detailed solutions, and performance analysis.

→ Enroll in Vajiram & Ravi’s UPSC Mains Test Series 2026 for structured answer writing practice, expert evaluation, and exam-oriented feedback.

→ Join Vajiram & Ravi’s Best UPSC Mentorship Program for personalized guidance, strategy planning, and one-to-one support from experienced mentors.

UPSC Result 2024 is released with latest UPSC Marksheet 2024. Check Now!

UPSC Toppers List 2024 is released now. Shakti Dubey is UPSC AIR 1 2024 Topper.

→ Also check Best UPSC Coaching in India

Vajiram Content Team
Vajiram Content Team
UPSC GS Course 2026
UPSC GS Course 2026
₹1,75,000
Enroll Now
GS Foundation Course 2 Yrs
GS Foundation Course 2 Yrs
₹2,45,000
Enroll Now
UPSC Mentorship Program
UPSC Mentorship Program
₹85000
Enroll Now
UPSC Sureshot Mains Test Series
UPSC Sureshot Mains Test Series
₹19000
Enroll Now
Prelims Powerup Test Series
Prelims Powerup Test Series
₹8500
Enroll Now
Enquire Now