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Galaxies by Or Graur

Galaxies

Or Graur

206 pages digital

2 editions

nonfiction science medium-paced
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Tracing galaxy studies back thousands of years ago to their beginnings, Graur describes their origin in Ptolemy’s book Almagest, which was written in the first century CE. Almagest catalogued hundreds of stars and a few hazy cloud-like objects, on...

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