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• Anglo-Australian  Observatory : astronomical images

• Canadian Space Agency

Official web site of the Canadian Space Agency who "is committed to leading the development and application of space knowledge for the benefit of Canadians and humanity".  Image gallery with a search engine and different sections: earth observation, satellites, science and exploration. Also the Canadian Astronaut Office.

• Catalog of Spaceborne Imaging : a guide to NSSDC's planetary image archives

The National Space Science Data Centre of the NASA presents more than 500 photographies (with information) from the different spatial explorations.

• The NASA

Official Web site. Contents popularized for the public.