The Smithsonian Astrophysical Observatory (SAO) is a "research institute" of the Smithsonian Institution. It is joined with the Harvard College Observatory (HCO) to form the Harvard-Smithsonian Center for Astrophysics (CfA). Because these research activities share Harvard and Smithsonian staff and resources, the links at this website will take you to information posted on the "CfA" pages.

 

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August 06, 2008 Seven Billion Year-Old Galaxies As modern telescopes peer more and more deeply into the universe, they are seeing older and older galaxies.   Read More...
July 30, 2008 The Sun's Magnetic Field Solar flares, prominences, and so-called coronal mass ejections are three different manifestations of stored magnetic energy near the sun's surface being released in sudden eruptions.   Read More...
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