Energy Northwest, a Washington state public power joint operating agency, announced an agreement with Bellevue-based Puget Sound Energy (PSE), which it says will “accelerate the agency’s program ...

Puget Sound Energy is investing $10 million in Energy Northwest’s ongoing efforts to develop new nuclear energy under an agreement the two agencies announced Wednesday. “Our clean energy future ...

Leaving tactical weapons out of New START maintains needed strategic stability in the short term while keeping the door open for future negotiation, writes Ben Morris-Levenson. Energy Secretary Steven ...

Nuclear physicists proposed a method to measure the speed of sound characterizing matter created in nuclear collisions. Heavy nuclei consist of hundreds of protons and neutrons (belonging to a group ...