blackbody radiation

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Spiral Galaxy type Sa-Sb or Sa/Sb in the constellation Virgo. The majestic Sombrero Galaxy Messier 104 (M104) or NGC 4594. The team took six pictures of the galaxy, stitched them together to create the final composite image. Photo from May-June 2003

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Galaxy clusters like Abell 2744 can act as a natural cosmic lens, magnifying light from more distant, background objects through gravity. NASA's James Webb Space Telescope may be able to detect light from the first stars in the universe if they are gravitationally lensed by such clusters. (astronomy, space exploration, galaxies)

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$Light refraction image with a cube. Prism$

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blackbody radiation sequence radio emission blackbody 21-centimetre radiation synchrotron radiation Wien’s law Planck’s radiation law Stefan-Boltzmann law

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Key People

Max Planck

Max Planck

German physicist

Paul Ehrenfest

Austrian theoretical physicist

Josef Stefan

Austrian physicist

William W. Coblentz

American scientist

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Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.

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