Gov. Mike Braun and Hoosier Energy signed a non-binding agreement with Canadian firm AtkinsRéalis to build nuclear energy.

The U.S. hasn’t detonated a nuclear weapon since 1992. Now a fusion start-up whose co-founders include former national lab ...

Speaking to reporters at the White House, Trump said such a meeting, which would be the first time the three leaders met outside of a larger multi-leader gathering, would be a “very positive thing for ...

OpenAI CEO Sam Altman has told employees that preventing advanced AI from becoming dangerous will require cooperation beyond ...