Space Travel
19, May, 2012

Space exploration began with the launch of Sputnik and Astrophysics was born as the application of physics to the phenomena observed by Astronomy, which etymologically means laws of the stars.

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Cape Photographic Durchmusterung Cpd
A general catalogue of 455,000 southern stars down to tenth magnitude, compiled at the Cape of Good Hope by J. C. Kapteyn 1851-1922 from photographic plates taken by Sir David Gill 1843-1914. The catalogue covers declinations from -19° to the south celestial pole and was produced between 1896 and 1900.