The Hunt for Vulcan: And How Albert Einstein Destroyed a Planet, Discovered Relativity, and Deciphered the Universe

Thomas Levenson. Random, $26 (256p) ISBN 978-0-8129-9898-6
The history of science brims with searches for mysteries that didn’t pan out, and Levenson (Newton and the Counterfeiter), director of the graduate program in science writing at MIT, charmingly captures the highs and lows of one such hunt—for the “undiscovered” planet Vulcan in the 19th century. Levenson explains that Isaac Newton’s theory of gravity gave astronomers of the period the expectation that orbiting bodies move along predictable elliptical paths; according to the theory, a wobble in a planet’s orbit would hint that the gravity of another body is affecting it. Neptune was discovered in the mid-19th century after irregularities were observed in the orbit of Uranus, so when perturbations were observed in Mercury’s orbit, a “planet fever” sent astronomers hunting for something orbiting nearby, close to the Sun. Levenson captures both the hunt and hunters in broad, lively strokes, including the grumpy Urbain Le Verrier, “a man who cataloged slights, tallied enemies, and held his grudges close,” and Edmond Lescarbault, a doctor and do-it-yourself “village astronomer.” Arguments over orbital mechanics and planet-shaped shadows (which turned out to be sunspots) in solar photos ended in 1915 with Einstein’s general theory of relativity and its description of curved space-time, which explained Mercury’s wobble. Levenson deftly draws readers into a quest that shows how scientists think and argue, as well as how science advances: one discovery at a time. Agent: Eric Lupfer, William Morris Endeavor. (Nov.)
Reviewed on: 08/17/2015
Release date: 11/03/2015
Genre: Nonfiction
Paperback - 256 pages - 978-0-8129-8830-7
MP3 CD - 978-1-5113-7287-9
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