Smithsonian Astrophysical Observatory

Science Updates

11/21/2014

Astronomical observations of young protostars indicate that early planetary systems evolved from the dust in a protoplanetary disk very quickly - in under five million years.

11/14/2014

One of the most remarkable aspects of modern cosmology is that the properties of the largest physical structures in the universe reveal the properties of the smallest.

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.