The strikes have intensified regional tensions after the killing of Iran’s Supreme Leader, prompting retaliatory attacks on US and Israeli assets and affecting global energy stability.

The night sky over Karaj, west of Iran's Tehran, turned bright blue, mirroring lightning, reportedly after US and Israeli missiles struck energy infrastructure in the area early Tuesday.

In early November, Constellation Energy proposed a further expansion of the Calvert Cliffs Clean Energy Center in Calvert County. But that plan, like every proposed nuclear expansion nationwide, faces ...