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Image: Vera Rubin using Kitt Peak National Observatory's 36-inch telescope

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Description: Photograph of Vera Rubin at Kitt Peak National Observatory in 1963 operating the observatory's No.1. 36-inch telescope. Kent Ford’s Image tube spectrograph is attached to the telescope. With Ford, she continued using the Kitt Peak 2.1-m, accumulating over 60 galaxy rotation curves over the following years. Flat rotation curves were directly visible from the spectra: these data provided compelling observational evidence for a new kind of matter in the Universe, “dark matter”. Vera Rubin continued observing at Kitt Peak and Cerro Tololo throughout her long career.
Author: KPNO/NOIRLab/NSF/AURA
Usage Terms: Creative Commons Attribution-Share Alike 3.0
License: CC-BY-SA-3.0
License Link: http://creativecommons.org/licenses/by-sa/3.0/
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