The mission of the Harvard-Smithsonian Center for Astrophysics (CfA) is to advance our knowledge and understanding of the universe through research and education in astronomy and astrophysics.
June 03, 2008Milky Way's Inner Beauty RevealedWe live in the Milky Way galaxy - a disk-shaped collection of about 400 billion stars including the Sun. Many of those stars and much of the dense gas between the stars concentrate into large arms that spiral outward from the galactic center.
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