Mars Rover Curiosity

September 15, 2014
Although lacking the glamour of manned space flight, unmanned probes have accomplished great things, and this book delivers a thoroughly satisfying description of one of the greatest. Aided by journalist Simon (co-author, with Kevin Mitnick: Ghost in the Wires: My Adventures as the World's Most Wanted Hacker, 2011, etc.), Manning, NASA's chief of engineering for the Mars Program Office, recounts Curiosity's tortuous development, from the rover's 2004 proposal to the Aug. 5, 2012, landing and subsequent triumph that "revolutionized the art of planetary exploration." No one took success for granted, aware that more than half of the probes sent to Mars have failed. The eight-month voyage presented few problems; not so the critical EDL, or entry-descent-landing, process, which required a Rube Goldberg-esque series of parachutes, rockets and thrusters that carefully deposited the rover and then flew away. Compared to previous rovers (the tiny 1997 Sojourner, modest 2003 Spirit and Opportunity), Curiosity is massive: five times heavier and 10 times more complex than its predecessor. Comparable to the Manhattan project, the development took longer and faced problems unknown to those who built the atom bomb. Many features couldn't be tested, and budgetary limitations meant that defects were often left in place if they were unlikely to affect the mission. Most readers know how it turned out. The engineers were not so lucky, and the authors deliver a nail-biting, nuts-and-bolts chronicle of seemingly endless technical and political problems overcome by brilliant, obsessive engineers who worked day and night and continue to do so. Readers yearning for stories of human space travel must follow developments in China, the only nation with an active manned space program. Those who appreciate the purely scientific results of planetary exploration will love this lively, intelligent account of a dazzling achievement.

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