File:Exoplanet Forecast.jpg

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English: This plot of data from NASA's Spitzer Space Telescope tells astronomers that a toasty gas exoplanet, or a planet beyond our solar system, contains water vapor. Spitzer observed the planet, called HD 189733b, cross in front of its star at three different infrared wavelengths: 3.6 microns, 5.8 microns, and 8 microns (see lime-colored dots). For each wavelength, the planet's atmosphere absorbed different amounts of the starlight that passed through it. The pattern by which this absorption varies with wavelength matches known signatures of water, as shown by the theoretical model in blue.
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Source http://planetquest.jpl.nasa.gov/image/44
Author ESA, NASA/ JPL-Caltech/G. Tinett (Institute d'Astrophysique de Paris, University College London)

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Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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Date/TimeThumbnailDimensionsUserComment
current14:40, 30 January 2013Thumbnail for version as of 14:40, 30 January 20133,000 × 2,400 (1.62 MB)Stas1995 (talk | contribs)User created page with UploadWizard

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