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Proton
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Liftoff of Proton launch vehicle carrying the Swedish Sirius 4 communications satellite, November 18, 2007. Proton launch vehicle, 1989 Proton Illustration comparing the heights of major launch vehicles, including V-2, R-7, Saturn V, space shuttle, Ariane 5, Delta IV Heavy, Proton, CZ-2F, and Starship, shown side by side with a vertical meter scale for reference.
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Nicolaus Copernicus. Nicolas Copernicus (1473-1543) Polish astronomer. In 1543 he published, forward proof of a Heliocentric (sun centered) universe. Coloured stipple engraving published London 1802. De revolutionibus orbium coelestium libri vi.
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Proton: References & Edit History

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Article History

Type Description Contributor Date
Add new Web site: Encyclopedia Astronautica - Proton. Oct 23, 2018
Add new Web site: Space Launch Report - Proton. Oct 23, 2018
Diagram of a Proton added. Mar 26, 2014
Photograph of Proton liftoff added. Nov 08, 2011
Add new Web site: Federation of American Scientists - Proton Launch Vehicle. Jul 05, 2011
Add new Web site: GlobalSecurity.org - UR-500. Jul 05, 2011
Article revised and updated. Aug 08, 2008
New article added. Dec 21, 2007
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