Astronomers say they have solved an outstanding problem that challenged our understanding of how the Universe evolved – the spatial distribution of faint satellite galaxies orbiting the Milky Way.
The Milky Way is the galaxy that contains our Solar System, and is named for its appearance from Earth. It is a barred spiral galaxy that contains an estimated 100–400 billion stars and has a diameter between 150,000 and 200,000 light-years.
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