Submitted by jshaw-adm on October 31, 2013 - 3:43pm

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 9, 2020
Scientists Announce Orbital Tilt Measurements in Youngest Planetary Star System Ever

Scientists at the Center for Astrophysics | Harvard & Smithsonian have, for the first time, measured the orbital tilt of an exoplanet younger than 45 million years.
February 4, 2020
Scientists Complete ELM Survey, Discover 98 Double White Dwarf Stars

Scientists at the Center for Astrophysics | Harvard & Smithsonian (CfA) have completed the Extremely Low Mass--also known as ELM--spectroscopic study of white dwarf stars in the Sloan Digital Sky Survey (SDSS).

Latest Science Update

March 6, 2020
Dark Matter and Massive Galaxies

About eighty-five percent of the matter in the universe is in the form of dark matter, whose nature remains a mystery, and the rest is of the kind found in atoms. Dark matter exhibits gravity but otherwise does not interact with normal matter, nor does it emit light.

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