Our Milky Way Galaxy is not alone. It is part of a gathering of about 25 galaxies known as the Local Group . This galaxy is sometimes known as M110, although it was actually not part of Messier 's original catalog . Excitement over discoveries of Peg dSph and other nearby dwarf galaxies reflects the fact that little galaxies may loom large in the process of galaxy evolution . They are thought to be the building blocks from which larger galaxies are constructed.
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