At the heart of our sun, fusion is unfolding. As hydrogen atoms merge to form helium, they emit energy, producing the heat ...
Controlling light is an important technological challenge—not just at the large scale of optics in microscopes and telescopes ...
Airmen do a 2-mile run as part of a physical training test at Fairchild Air Force Base, Wash., Oct. 29, 2024. Under revised ...
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