The CfA is a collaboration of Harvard College Observatory (HCO) and Smithsonian Astrophysical Observatory (SAO) and home to Harvard's Department of Astronomy.

News Releases

April 15, 2014

The Minor Planet Center, located at the Smithsonian Astrophysical Observatory (SAO) in Cambridge, Mass., has announced the recipients of the 2013 Edgar Wilson Award for the discovery of comets by amateurs.

April 3, 2014

A new study of gamma-ray light from the center of our galaxy makes the strongest case to date that some of this emission may arise from dark matter, an unknown substance making up most of the material universe.

Latest Science Update

April 18, 2014

Atomic hydrogen is the lightest and by far most abundant element in the universe. When it is exposed to ultraviolet light, its single electron can be stripped from the atom, a situation that arises near stars that are hot.

SI Specific Information

SI-specific information regarding the government shutdown may be found at alerts.si.edu. SAO staff are encouraged to review the website for updated information