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Nature 445, 803 (22 February 2007) | doi:10.1038/445803a; Published online 21 February 2007
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Direct view of a dark and distant world
Katharine Sanderson
Three groups of astronomers have made the first detailed measurements of radiation emitted by two exoplanets. Although sketchy, the results hint that the worlds are cloaked in black silicate clouds that don't let light in or out.
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