Discovery points to origin of mysterious ultraviolet radiation
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Infalling gas found, star-forming galaxies likely primary energy source of Lyman-alpha radiation emitted from gigantic hydrogen gas blobs.
Read MoreInfalling gas found, star-forming galaxies likely primary energy source of Lyman-alpha radiation emitted from gigantic hydrogen gas blobs.
Read MorePhysicists plan to expand Telescope Array cosmic ray observatory, seeking the source of the most energetic particles in the universe.
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