Watching Galaxies Grow Old Gracefully
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. Now, a century later, NASA's Galaxy Evolution Explorer is helping piece together the evolution of these cosmic species. picked by AutumnLotus 11 months ago
tags galaxies grow old edwin hubble island universe galaxy
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