市场消息：卫星图像显示，在美国空袭伊朗几天后，伊朗福尔多核设施进行了大规模的建设和挖掘工作。

Core Insights - Satellite imagery indicates significant construction and excavation activities at Iran's Fordow nuclear facility shortly after U.S. airstrikes in Iran [1] Group 1 - The construction activities at the Fordow facility suggest a potential escalation in Iran's nuclear capabilities [1] - The timing of these developments, following U.S. military actions, raises concerns about regional stability and nuclear proliferation [1]