The Evolution of Galaxies WHO International Programme on Chemical Safety Wirtschaftsuniversität Wien (Institut für Philosophie)

Wirtschaftsuniversität Wien (Institut für Philosophie)

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Berufsakademie Berlin (Fachbereich der Fachhochschule für Wirtschaft)

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2Prognosen aus technologischer Perspektive48

The Evolution of Galaxies WHO International Programme on Chemical Safety Wirtschaftsuniversität Wien (Institut für Philosophie)Galaxies have a history. This has become clear from recent sky surveys, which have shown that distant galaxies, formed early in the life of the Universe, differ from the nearby ones. New observational windows at ultraviolet, infrared and millimetric wavelengths (provided by ROSAT, IRAM, IUE, IRAS, ISO) have revealed that galaxies contain a wealth of components: very hot gas, atomic hydrogen, molecules, dust, dark matter. A significant advance is