HILL AIR FORCE BASE, Utah — The Pentagon and the Energy Department for the first time airlifted a small nuclear reactor from California to Utah, demonstrating what they say is U.S. potential to ...

Iran has resorted to unconventional tactics in its retaliatory strikes against the US and Israel.

Energy Secretary Chris Wright, center, and Under Secretary of Defense Michael Duffey, left, listen as Isaiah Taylor, CEO of Valar Atomics, discusses a microreactor developed by Valar to generate ...