News From the Field
Rutgers, Penn State Astronomy Teams Discover Ancestors of Milky Way-type Galaxies
January 8, 2008
Rutgers and Penn State astronomers have discovered galaxies in the distant universe that are ancestors of spiral galaxies like our Milky Way. They are quite small--one-tenth the size and one-twentieth the mass of our Milky Way, and have fewer stars--one-fortieth as many as are in the Milky Way. Several of these galaxies, sometimes 10 or more, pulled together over the ensuing few billion years to form a single spiral galaxy.
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