Massive galaxies don’t form new stars, but get bigger by consuming neighbors

September 20, 2014 1:56 AM

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The Milky Way itself will consume two smaller galaxies before merging with Andromeda.

A new study led by Dr. Aaron Robotham of the University of Western Australia node of the International Centre for Radio Astronomy Research (ICRAR) has found that the universe’s most massive galaxies are growing by consuming neighboring dwarf galaxies.

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