Titlebook: Extragalactic Astronomy and Cosmology; An Introduction Peter Schneider Textbook 2015Latest edition Springer-Verlag GmbH Germany, part of Sp

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Zusammenfassung und Schlussfolgerungen,After having described the cosmological model in great detail, as well as the objects that inhabit our Universe at low and high redshifts, we will now try to understand how these objects can be formed and how they evolve in cosmic time.

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The world of galaxies,The insight that our Milky Way is just one of many galaxies in the Universe is less than 100 years old, despite the fact that many had already been known for a long time. The catalog by Charles Messier (1730–1817), for instance, lists 103 diffuse objects.

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The Universe at high redshift,fact, for several decades cosmologists have considered the determination of the density parameter and the expansion rate of the Universe as their prime task, and now this goal has largely been achieved.

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Outlook,capabilities will continue rapidly in the near future, enabling us to perform better and more detailed studies of cosmic sources. Before we will mention some of the forthcoming astronomical facilities, it should be pointed out that some of the recently started projects have at best skimmed the cream, and the bulk of the results is yet to come.