The Smithsonian Astrophysical Observatory is a research institute of the Smithsonian Institution, concentrating on astrophysical studies including galactic and extragalactic astronomy, cosmology, sola
The Center for Astrophysics | Harvard & Smithsonian (CfA) Headquarters in Cambridge, Massachusetts. The Smithsonian Astrophysical Observatory (SAO) has been joined with the CfA since 1973.
The first image of the photon ring of a black hole (M87*), captured by the Event Horizon Telescope. SAO plays a central role in the project.
Samuel Pierpont Langley
Dr. Charles G. Abbot with Book
Smithsonian Institution
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The Smithsonian Institution is a group of museums, education and research centers, created by the United States federal government "for the increase and diffusion of knowledge". Founded on August 10,
Smithsonian Astrophysical Observatory
…The Smithsonian Astrophysical Observatory (SAO) is a research institute of the Smithsonian Institution, concentrating on astrophysical studies including galactic and extragalactic astronomy, cosmology, solar, earth and planetary sciences, theory and…
The Smithsonian Institution Building in Washington, D.C., also known as "the Castle"
"The Castle" (built 1847) in April 1865.
"The Castle" on the National Mall: the institution's earliest building remains its headquarters.
The Smithsonian Institution area around the National Mall.