Monster_Galaxies_Lose_Their_Appetite_With_Age_03.jpg

Summary

Description	English: This image shows the galaxy cluster observed by NASA's Wide-field Infrared Survey Explorer (WISE) and Spitzer Space Telescope missions.
Date	31 July 2013, 10:17:57
Source	http://www.nasa.gov/mission_pages/spitzer/news/monster-galaxies-lose-appetite-with-age/index.html
Author	NASA/JPL-Caltech/SDSS/NOAO

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