Hubble's Milky Way photos reveal a cannibal galaxy

02/26/2013 | Space.com

Photos from the Hubble Space Telescope show that the Milky Way galaxy has grown by cannibalizing smaller galaxies, according to a study. The finding could help astronomers gain a better understanding of how mass in the galaxy is distributed and could also give new insight into dark matter. "By studying the mass distribution, we can see whether it follows the same distribution as predicted in theories of structure formation," said lead author Alis Deason.

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