Iran buried its highly enriched uranium in gas form
Stored deep within underground tunnels at sites like Natanz, enough gaseous uranium exists to fuel ten nuclear weapons despite previous attempts to destroy the facilities.
Highly enriched uranium is typically managed as a solid metal or powder, but significant quantities of Iran's nuclear material exist in a volatile gas form. This material is distributed across several key facilities, including Isfahan, Natanz, and Fordo, where it is stored deep within underground tunnel complexes. Despite previous aerial bombardments that damaged these sites, the gaseous uranium remained intact and unrecovered within its subterranean vaults.