Author: David A. Weintraub Retail Price: $29.95 Our Price: $29.95
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Astronomers have determined that the universe is 13.7 billion years old. But how did they come to such a precise conclusion? Weintraub unravels the myriad strands of reasoning, illuminating such phenomena as red giants, Cepheid variable stars, galaxy clusters, dark matter, the accelerating universe, and much more. 'Magnificently presented,'---Choice. 384 pages, softcover. Princeton University.
