This illustration shows the location of the globular cluster M4
in our Milky Way Galaxy, which is depicted "edge-on" or from the
side. Globular clusters like M4 are the first pioneer settlers
of the Milky Way. Many coalesced to build the hub of our galaxy
and formed billions of years before the appearance of the Milky
Way's magnificent pinwheel disk. Today, 150 globular clusters
survive in the galactic halo. Object Names: M4, NGC 6121 Image
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