• May 19, 2011

    Episode 334: Hubble's 21st Anniversary

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    Interacting pairs and groups of galaxies seem to be common in the universe. For 21 years, the Hubble Space Telescope has been providing beautiful images of such encounters along with amazing images of all kinds of other objects. Hubble took an anniversary image of interacting galaxy Arp 273, showing the beautiful but disturbed spiral structure of the main galaxy. The star formation and distortion apparent is most likely due to interaction with at least one, and possibly two, smaller galaxies in the vicinity.