A nuclear site is any Iranian facility used for the development, enrichment, storage, or processing of nuclear material or technology, including reactors, enrichment facilities, uranium mines, and research centers located on Iranian soil.
Such a strike must be widely assumed to be perpetrated by Israel and must cause clear physical damage as a direct goal of the attack. It must take place after the creation of this market and before 01/01/2026. Will resolve according to time the attack took place, not time of reporting.
If there is ambiguity I will use my personal best judgement. I will not bet on this market.
https://www.axios.com/2024/11/15/iran-israel-destroyed-active-nuclear-weapons-research-facility
Note that this strike occured before the creation of this market and cannot trigger a YES resolution.