The Senate is divided on war powers as President Donald Trump weighs military action against Iran's nuclear sites. Some argue the Constitution gives Congress the sole authority to declare war.

Ariz., warned of "loss of innocent life" and "escalation" in the region as Trump left the door open to strikes on Iran.

The Supreme Court on June 18 rejected challenges to a nuclear waste storage site on the Texas-New Mexico border.

The decision is the latest chapter in the decadeslong battle over what to do with the waste generated by the nation's nuclear power plants.

EPA's plan to scrap a rule curbing power plant emissions has dimmed the outlook for U.S. carbon capture and storage projects.

New data released this week by an international institution reveals that multiple nations possess stockpiles of military nuclear warheads.

Apache County’s energy future got a nod on the national stage this week, as U.S. Sen. Ruben Gallego spotlighted the Coronado ...

A year after Congress allowed a radiation compensation program to lapse, former Navajo uranium miners and their families want ...

High heat can impact anyone’s health, but new research shows people experiencing homelessness face increased risk.

Bipartisan nuclear innovation through small modular reactors could revitalize former coal towns with permanent jobs, yet ...

Two state lawmakers will attempt to unseat their fellow Republicans on the Arizona Corporation Commission, the state’s top ...