Pluto Confidential: An Insider Account of the Ongoing Battles over the Status of Pluto


When the International Astronomical Union adopted a new definition of a “planet” in August 2006, Pluto became a dwarf planet, drawing a divisive line in science and public opinions. The controversy of whether Pluto is a planet continues years later, and passion about the decision remains, pitting scientist against scientist and invoking sentiments and nostalgia from the rest of the world. With the IAU definition, the future of space objects is forever changed. Learn how this resolution came

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The mania of the nations on the planet Mars, and its terrific consequences; a combination of fun and wisdom


This reproduction was printed from a digital file created at the Library of Congress as part of an extensive scanning effort started with a generous donation from the Alfred P. Sloan Foundation. The Library is pleased to offer much of its public domain holdings free of charge online and at a modest price in this printed format. Seeing these older volumes from our collections rediscovered by new generations of readers renews our own passion for books and scholarship.

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