A Tidal Galaxy

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A previously unsuspected tidal dwarf galaxy candidate appears only in the ultraviolet, indicating the presence of many hot young stars as seen in this cool space Image. IC 4970, the small disk galaxy interacting with NGC 6872, is located above the spiral’s central region. The spiral is 522,000 light-years across from the tip of one outstretched arm to the tip of the other, which makes it about five times the size of our home galaxy, the Milky Way.

Credit: NASA’s Goddard Space Flight Center/ESO/JPL-Caltech/DSS/via Space.com

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