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CfA Headquarters in Cambridge, Massachusetts
CfA Headquarters in Cambridge, Massachusetts
The Harvard College Observatory, circa 1899. Harvard Square and the City of Boston are in the distant background. Most of the telescope domes in the f
The Harvard College Observatory, circa 1899. Harvard Square and the City of Boston are in the distant background. Most of the telescope domes in the foreground are no longer standing, but the largest dome in the top right of the photo, housing the 1847 "Great Refractor", still remains. The Great Refractor was the largest telescope in the United States until 1867. It was the first telescope to take a photographic image of the Moon.
The first image of the photon ring of a black hole (M87*), captured by the Event Horizon Telescope. The CfA plays a central role in the project.
The first image of the photon ring of a black hole (M87*), captured by the Event Horizon Telescope. The CfA plays a central role in the project.
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Harvard College Observatory, circa 1899
Harvard College Observatory, circa 1899
Sketch of Harvard's Great Refractor telescope
Sketch of Harvard's Great Refractor telescope