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

September 10, 2014

Dr. Philip M. Sadler of the Harvard-Smithsonian Center for Astrophysics (CfA) has been awarded the 2014 Technology and Innovation Award from the International Planetarium Society.

September 4, 2014

Before iPhones and laptops there were human computers, some of whom worked at the Harvard College Observatory. Women like Henrietta Swan Leavitt, Williamina Fleming, and Annie Jump Cannon made some of the most important discoveries in astronomy in the early 20th century.

Latest Science Update

September 12, 2014

The Pipe Nebula is a prominent dark molecular cloud located about 430 light-years from us. It contains about ten thousand solar-masses of material, making it one of the closest giant molecular complexes to us, and with dimensions of about 10 by 46 light-years, one of the largest.

SI Specific Information

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