Watching Galaxies Grow Old Gracefully

In the early 1900s, Edwin Hubble made the startling discovery that our Milky Way galaxy is not alone. It is just one of many galaxies, or "island universes," as Hubble dubbed them, swimming in the sea of space.

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<p><a href="http://www.physorg.com/news114365801.html">Watching Galaxies Grow Old Gracefully</a></p> <p>In the early 1900s, Edwin Hubble made the startling discovery that our Milky Way galaxy is not alone. It is just one of many galaxies, or "island universes," as Hubble dubbed them, swimming in the sea of space.</p>