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    Galaxies 'Coming of Age' in Cosmic Blobs

    Chandra observes Lyman-alpha hydrogen blobs.

    Artist concept of a galaxy inside of a glowing hydrogen "blob." Image Credit: NASA/CXC/M.Weiss

    New data from the Chandra X-ray Observatory and other telescopes has helped NASA pinpoint the "coming of age" of galaxies and black holes. This is a crucial stage of the evolution of galaxies and black holes -- known as "feedback" -- that astronomers have long been trying to understand. The discovery also helps resolve the true nature of gigantic blobs of gas observed around very young galaxies.

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