Spitzer_Planck_Kepler

From left to right, artist’s concepts of the Spitzer, Planck and Kepler space telescopes. NASA extended Spitzer and Kepler for two additional years; and the U.S. portion of Planck, a European Space Agency mission, for one year. The relative sizes of the artist’s concepts are not to scale. Image credit: NASA/JPL-Caltech

Posted 
April 8, 2012
 in 

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