Iran's 'Rainbow Site': Secret 2,500-Acre Nuclear Weapons Facility Exposed by Satellite Images

# Iran's 'Rainbow Site': Secret 2,500-Acre Nuclear Weapons Facility Exposed by Satellite Images

> **Quick answer:** On May 9, 2026, Fox News released satellite imagery exposing the "Rainbow Site" — a covert 2,500-acre Iranian nuclear weapons facility hidden in Semnan Province behind a chemical company front for over a decade. The facility has been extracting tritium, a material with no civilian use that dramatically boosts nuclear warhead yields. The disclosure, timed to the breakdown of Iran's MOU talks with the US, has hardened American demands for full nuclear dismantlement.

Iran's secret nuclear weapons program just got a lot harder to deny. Satellite images released by Fox News on May 9, 2026 reveal the "Rainbow Site" — a 2,500-acre facility buried in Semnan Province that has been secretly extracting tritium, a key ingredient for boosted nuclear warheads, for more than ten years.

## What Is the Rainbow Site?

The facility, codenamed "Rangin Kaman" (Persian for Rainbow), sits near Ivanaki in Garmsar, Semnan Province. It was constructed starting in 2009 and became operational around 2013. From the outside — and on paper — it operates as Diba Energy Siba, a chemical production company registered under the holding firm Pishtazan-e Towsee-ye San'ati-ye Arya Razi.

That holding company is chaired by IRGC Brigadier General Naser Maleki, who is sanctioned under UN Security Council Resolution 1747.