Harvard University astronomers and Smithsonian Institution astronomers explore the cosmos together. The combination of the Harvard College Observatory (HCO) and the Smithsonian Astrophysical Observatory (SAO) is known as the Center for Astrophysics | Harvard & Smithsonian (CfA).

News Releases

August 3, 2020

Scientists at the Center for Astrophysics | Harvard & Smithsonian (CfA) announced today the discovery of a complex set of spiral arms extending to 1000 astronomical units from the young variable star, RU Lup.

July 27, 2020

Scientists from the Center for Astrophysics | Harvard & Smithsonian and the New Jersey Institute of Technology today announced the first successful measurement and characterization of the "central engine" of large solar flare.

Latest Science Update

July 31, 2020

The direct detection of gravitational waves from at least eleven sources during the past five years has offered spectacular confirmation of Einstein's model of gravity and space-time, while the modeling of these events has provided information on star formation, gamma-ray bursts,neutron stars, the age of the universe, and even verification of ideas about how very heavy elements are produced.

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