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A rough estimate shows that a 30,000-pound projectile moving faster than the speed of sound would travel at most five to 10 meters — up to around 35 feet — into several common types of rock, including those most likely found at Fordo, said Ryan Hurley, an associate professor of mechanical engineering at Johns Hopkins and an expert on the behavior of rocks in extreme conditions.
Simplified Text
30000-pound projectile moving faster than sound would travel at most five to 10 meters up to around 35 feet into several common rock types including those at Fordo Ryan Hurley said
Confidence Score
0.900
Claim Maker
Ryan Hurley
Context Type
News Article
Context Details
{
    "rock_types": "several common types",
    "projectile_weight": "30,000 pounds",
    "expert_affiliation": "Johns Hopkins",
    "penetration_distance_feet": "up to around 35 feet",
    "penetration_distance_meters": "5 to 10 meters"
}
UUID
a11617c7-8c38-4a1e-9f1e-6aaade28e657
Vector Index
âś— No vector
Created
February 15, 2026 at 1:36 PM (6 months ago)
Last Updated
February 15, 2026 at 1:36 PM (6 months ago)

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Screenshot of https://www.nytimes.com/interactive/2025/08/20/world/middleeast/fordo-us-iran-nuclear-program-strike.html?campaign_id=9&emc=edit_nn_20250820&instance_id=160897&nl=the-morning&regi_id=122976029&segment_id=204256&user_id=b25c5730c89e0c73f75709d8f1254337
How a U.S. Strike on Fordo, Iran’s Nuclear Site, Might Have Played Out
Completed Analysis
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1 week ago
https://www.nytimes.com/interactive/2025/08/20/world/middleeast/fordo-us-iran-nuclear-program-strike.html?campaign_id=9&emc=edit_nn_20250820&instance_id=160897&nl=the-morning&regi_id=122976029&segment_id=204256&user_id=b25c5730c89e0c73f75709d8f1254337

This article analyzes the potential impact of a US strike on Iran's Fordo nuclear facility, focusing on the bomb used, the facility's structure, and the site's geology. It examines how the GBU-57 bomb might penetrate the rock and the effects of the blast. Experts assess the potential damage and the variables involved.

Iran Nuclear Program Fordo Military Strike GBU-57 Geology Explosives Analysis

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