NASA snaps a vivid image of an extremely energetic galaxy
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The legendary Hubble telescope snapped an image of an intriguing galaxy, some 130 million light-years away.
NGC 5728 is a spiral galaxy, similar to the Milky Way, but with an especially energetic core, as seen in the recent Hubble image. This is a class of galaxy with an "active galactic nucleus (AGN)," explained...