In the latest episode of Photo Evidence, host Catherine Barnwell pores over years of satellite images of Iran's Taleghan 2 military facility, one of the suspected homes of the Islamic Republic's nuclear weapons programme.
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Barnwell → pore → programme
Taleghan 2 sits inside the vast Parchin military complex, around 20 miles southeast of Tehran.
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Taleghan → sit → Tehran
The complex has been repeatedly bombed since 2024.
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complex → bomb → 2024
The facility was built in the early 2000s as part of the infamous Amad Plan, Iran's secret programme to develop a nuclear warhead.
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facility → build → warhead
Tehran has always denied the plan existed.
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plan → deny → ?
Under Barack Obama's 2015 nuclear deal, Iran agreed to a ban on exactly this kind of weapons research.
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Iran → agree → research
But that deal has since collapsed, and satellite images taken since 2024 have captured a string of strange developments at Taleghan 2.
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images → collapse → Taleghan
Israel flattened the building in October 2024.
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Israel → flatten → October
Iran rebuilt it and buried the new bunker under concrete and earth, only for Israel to strike it again in March 2026.
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Israel → rebuild → March
Barnwell shows how Iran is rebuilding the facility once again, and speculates on what the Islamic Republic could be hiding inside.
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Republic → show → what
In Photo Evidence, Catherine Barnwell pores over years of satellite images of Iran's Taleghan 2, one of the suspected homes of the Islamic Republic's nuclear weapons programme
Taleghan 2 sits inside the vast Parchin military complex, around 20 miles southeast of Tehran.
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Taleghan → pore → Tehran
The complex has been repeatedly bombed since 2024
Barnwell shows how Iran is rebuilding the facility once again, and speculates on what the Islamic Republic could be hiding inside
'
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Republic → bomb → what
Satellite imagery showed Iran beginning repair work at the site,' she explained.
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she → show → site
'Iran erected a massive tarpaulin canopy over the entire damaged buried structure, completely obscuring the work taking place beneath it from aerial and satellite observation.
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Iran → erect → observation
'Presumably, this is intended to conceal what is happening beneath it, including the potential movement of new testing equipment back into the facility.
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what → intend → facility
One of the biggest questions is whether Iran is replacing the high explosive containment vessel believed to have been destroyed in the March strikes.
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Iran → replace → strikes
'In 2018, when Israel's Mossad seized Iran's secret nuclear archive, the documents and photographs recovered included evidence relating directly to Taleghan 2 in 2003.
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documents → seize → 2003
One of the most significant pieces of equipment documented in the archive was a small cylindrical steel vessel installed inside Taleghan 2 to contain high explosive experiments.
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One → document → experiments
The vessel was used for what are known as cold tests.
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what → use → tests
In these experiments, scientists use conventional explosives to compress uranium proxies, allowing scientists to study the mechanics of a nuclear implosion without triggering a nuclear explosion.
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scientists → use → explosion
It is the mandatory final step to engineering a functional nuclear warhead.'
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It → engineer → warhead
Not only does Barnwell's research pose troubling questions about Iran's current designs on a nuclear weapon, but it also suggests the Middle Eastern nation was conducting nuclear weapons research despite commitments to the contrary.
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nation → pose → contrary
That same archive revealed that Iran never truly scrapped its programme, with leaders ordering the work split up and hidden in 2003.
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leaders → reveal → 2003
'The files revealed that Taleghan 2 was never fully abandoned after 2003, and that experiments on nuclear explosives had continued under tighter secrecy throughout the 2000s and 2010s,' Barnwell explained.
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Barnwell → reveal → 2000s
'Crucially, the archive exposed that in mid 2003, Iranian leadership ordered the programme to be divided rather than destroyed.
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programme → expose → 2003
They quietly moved the sensitive research into a covert track, dispersing scientists across universities and front organisations so the dual-use data generated at places like Taleghan could keep moving forward under academic cover.
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data → move → cover
However, in the months leading up to 2024, intelligence declassifications showed that Iran took that expertise off ice, quietly returning to the undeclared Taleghan 2 facility to resume top-secret active explosive research.'
Watch the full episode by subscribing to Daily Mail World on YouTube.
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Iran → lead → YouTube