Based on models of galaxy formation, for years theorists have expected to find a lot more of these dwarf galaxies around our own Milky Way.
FORBES: Astronomers Confirm Milky Way's Most Distant Stellar Stream
The youthful activity, though, profoundly affects the formation of stars in the galaxy itself and beyond.
WSJ: Book Review: Gravity's Engines
Understanding the formation and evolution of the Milky Way's bulge is vital for understanding the galaxy as a whole.
ENGADGET: 9-gigapixel image of the Milky Way reminds us just how small we truly are
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