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

March 18, 2020

The Tropospheric Emissions: Monitoring of Pollution (TEMPO) instrument, a NASA satellite instrument lead by Principal Investigator Kelly Chance from the Center for Astrophysics | Harvard & Smithsonian, will launch to orbit aboard a SpaceX Falcon 9 launch vehicle.

March 18, 2020

Last April, the Event Horizon Telescope (EHT) sparked international excitement when it unveiled the first image of a black hole. Today, a team of researchers have published new calculations that predict a striking and intricate substructure within black hole images from extreme gravitational light bending.

Latest Science Update

March 27, 2020

The path of a light beam is bent by the presence of mass, as explained by General Relativity. A massive body can therefore act like a lens - a so called "gravitational lens" – to distort the image of an object seen behind it.

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