ITHACA, N.Y., Dec. 19 -- An instrument aboard NASA's recently launched orbiting infrared observatory has found evidence of organic molecules in an enormously powerful galaxy some 3.25 billion light years from Earth. Equal to 10 trillion times the luminosity of the sun, the galaxy is one of the brightest ever detected. LIFTING THE COSMIC VEIL: Short-wavelength infrared view of spiral galaxy Messier 81. (Photo: NASA/JPL-Caltech/S. 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