Photos released by the Institute for Science and International Security show an Iranian missile-testing site near Tehran before an explosion destroyed the base.

The huge explosion that destroyed a major missile-testing site near Tehran three weeks ago was a major setback for Iran’s most advanced long-range missile program, according to American and Israeli intelligence officials and missile technology experts. In interviews, current and former officials said surveillance photos showed that the Iranian base was a central testing center for advanced solid-fuel missiles, an assessment backed by outside experts who have examined satellite photos showing that the base was almost completely leveled in the blast.

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http://www.nytimes.com/2011/12/05/world/middleeast/blast-leveling-base-seen-as-big-setback-to-iran-missiles.html?_r=2&;hp