Showing results for "Knowledges" in Astronomy & Space Science

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A leading astronomer and gifted teacher takes readers on a wondrous tour of how science confronts the big questions—about the universe’s origins, destiny, and fundamental nature—and how it contends with the limits of our knowledge Humans have learned a lot about the world around us and the...

About space facts and mysteries

In Galaxies, Or Graur offers a brief and fascinating overview of the history, physics, and astrophysical uses of galaxies. Starting with the history of the last two thousand years of galaxy studies, Graur discusses the types of galaxies we observe and the physics that drive them; the myths and physical structure of the Milky Way; how galaxies were used to discover and study the mysterious phenomena of dark matter and dark energy; and how scientists think galaxies formed shortly after the Big Bang and evolved to their present forms.