Opinions on Galaxy formation and evolution

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The study of galaxy formation and evolution is concerned with the processes that formed a heterogeneous universe from a homogeneous beginning, the formation of the first galaxies, the way galaxies change over time, and the processes that have generated the variety of structures observed in nearby galaxies.

Galaxy formation is hypothesized to occur, from structure formation theories, as a result of tiny quantum fluctuations in the aftermath of the Big Bang. The simplest model for this that is in general agreement with observed phenomena is the Λ-Cold Dark Matter cosmology; that is to say that clustering and merging is how galaxies gain in mass, and can also determine their shape and structure.

In the image below, you can see a graph with the evolution of the times that people look for Galaxy formation and evolution. And below it, you can see how many pieces of news have been created about Galaxy formation and evolution in the last years.
Thanks to this graph, we can see the interest Galaxy formation and evolution has and the evolution of its popularity.

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