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Kathryn Higley

Distinguished Professor of Nuclear Science and Engineering, Oregon State University

An M1A1 Abrams Main Battle Tank crew with Company A, 4th Tank Battalion, fires its 120 mm main gun during the company’s pre-qualification tank gunnery at Range 500, Aug. 4, 2015. The live-fire exercise tests tank crews on their ability to work together on target acquisition and accuracy. (U.S. Marine Corps Photo by Lance Cpl. Julio McGraw/Released)

The US will send depleted uranium munitions to Ukraine — a health physicist explains what that means

Kathryn Higley