Various Levels of Cleanup at Mojdeh / Malek Ashtar University
Various levels of cleanup activities were observed at the three sites related to Mojdeh, aka Lavizan 2, following the March 2026 attacks: The main Mojdeh site was previously attacked in June 2025 and was undergoing rapid cleanup efforts, which the follow-on strikes in March 2026 appear to have effectively ended.
Activity Remains Dormant at Pickaxe Mountain
Vantor Technologies imagery from October 7, 2026, shows that the Eastern tunnel entrances remain blocked by earth. The earthen mound roadblocks leading to the Western tunnel portals also remain in place.
Significant Activity Identified at Minzadayi, an Iranian Nuclear Weapons Development Site
High resolution VANTOR Technologies satellite imagery from September and October 2026 shows significant renewed activity at Minzadayi, a nuclear weapons development compound northeast of Tehran revealed by Israel during the 2026 war. The compound was attacked by Israel on March 3rd, 2026, destroying several buildings and likely underground structures.
Iran is Rapidly Reconstructing Taleghan 2
Vantor Technologies satellite imagery from September 13, 2026, shows that Iran is rapidly moving forward with the reconstruction of the Taleghan 2 facility located at the Parchin military complex. Iran has erected a tarp above the destroyed hardened buried facility, hiding the reconstruction activity that is occurring underneath from satellite view or aerial reconnaissance. Significant activity can be seen throughout the construction site. Construction vehicles, including dump trucks, bulldozers, concrete pump trucks and concrete mixers, and cranes, are actively working to rebuild the facility. Repair and rehabilitation work began in June 2026, first with Iran repairing and placing concrete caps over the penetration holes caused by the multiple bunker buster weapons dropped on the facility.[1] Iran has also built a new concrete apron reinforcement on the right side of the facility, the one on the left side that we noted in our July 2026 update now appears complete. This will provide additional blast protection from an aerial attack.
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Various Levels of Cleanup at Mojdeh / Malek Ashtar University
Various levels of cleanup activities were observed at the three sites related to Mojdeh, aka Lavizan 2, following the March 2026 attacks: The main Mojdeh site was previously attacked in June 2025 and was undergoing rapid cleanup efforts, which the follow-on strikes in March 2026 appear to have effectively ended.
Significant Activity Identified at Minzadayi, an Iranian Nuclear Weapons Development Site
High resolution VANTOR Technologies satellite imagery from September and October 2026 shows significant renewed activity at Minzadayi, a nuclear weapons development compound northeast of Tehran revealed by Israel during the 2026 war. The compound was attacked by Israel on March 3rd, 2026, destroying several buildings and likely underground structures.
Imagery Update: Passive Defenses Identified at Natanz and Pickaxe Mountain
Vantor Technologies imagery from September 11, 2026, shows that the earthen mound roadblocks are still in place, blocking ground vehicle access to the Western tunnel portals. The week-long restricted access reinforces the assessment that the facility is not currently used for operations, but that it does contain valuable equipment and/or materials. The clearly visible roadblocks mean a return to regular access and activity at the Western tunnel entrances should easily be detected by U.S. intelligence and visible on commercially available imagery. Together with the previously blocked Eastern tunnel entrances, the new roadblocks effectively established a status quo inside the facility starting in early August.
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October 27, 2026
IAEA DG Grossiâs summary on the status of Iranâs *declared* nuclear program is largely aligned with our observations in satellite imagery; post June 2025 there have been some repairs at the Natanz PFEP and the above ground Esfahan facility but we also assessed them to be unlikely for actual reconstruction and more likely for shielding from overhead observation. The key declared sites where enriched uranium storage and/or enrichment took place at Fordow, Natanz, and Esfahan remain non-operational. We do have concerns about sites associated with Iranâs UNDECLARED program however, past and present. DG Grossi does not explain which sites the IAEA is monitoring when referring to "locations associated with [Iran's] past undeclared nuclear programme." But it should include Taleghan 2, which is actively undergoing reconstruction, and Minzadayi, which sees high levels of activity around the site. The former was part of Iranâs crash nuclear weapons program codenamed Amad and investigated but never visited by the IAEA. The IAEA did find uranium particles at the building next door (Taleghan 1), despite intensive sanitization efforts, that were never adequately explained. Taleghan 2 was linked to nuclear weapons relevant work as recently as 2024. Minzadayi was targeted by the IDF in March 2026 for its role in Iranâs most recent nuclear weapons capabilities and was linked in public reporting to metallurgy and to the Turquz Abad site, which is part of an ongoing IAEA investigation. Â
Also not mentioned explicitly by DG Grossi is the status of surviving centrifuges and Pickaxe Mountain, where centrifuges and components were moved according to @WSJ reporting on Israeli intelligence. Together with the enriched uranium, these are critical elements of Iran's nuclear program that could provide Iran a path to reconstitute its capabilities outside of declared facilities.
Quote from DG Grossi today: "As stated in my reports to the Board of Governors, the IAEA continues to monitor activities at Iranâs declared nuclear facilities and locations associated with its past undeclared nuclear programme. Also, and since June 2025, we have not identified any activity to repair or reconstruct any of the facilities damaged in the military attacks of 2025 and 2026."
Read the tweet here.
You can also follow our expert on X:David Albright (@DAVIDHALBRIGHT1);Sarah Burkhard (@SarahBurkhard);Spencer Faragasso (@SFnuclear)
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