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Ball lightning is a glowing weather phenomenon scientists still struggle to explain or reproduce

For centuries, witnesses have described luminous spheres appearing during or after thunderstorms. The reported objects may ...
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Icy moon Europa may glow in the dark, experiments suggest

Europa's icy surface and possible ocean beneath it may emit a glow into space. Credit: NASA/JPL-Caltech/SETI Institute By replicating conditions that may be present on the surface of Europa, one of ...