Sojourner: An Insider's View of the Mars Pathfinder Mission

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9780425198391: Sojourner: An Insider's View of the Mars Pathfinder Mission

An engineer at NASA's Jet Propulsion Laboratory and leader of the robotic program offers an insider's view of the Mars Pathfinder mission that sent a small but sophisticated robot millions of miles through space to explore the rocky terrain of Mars, providing a human perspective on the project and assessing its meaning in terms of scientific discovery. Reprint.

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About the Author:

Andrew Mishkin has been a key player in NASA's robotic program for the past 15 years. He joined the Sojourner rover team at its formation, eventually leading the rover operations team and commanding the rover during its exploration of Mars.

From Publishers Weekly:

Millions of viewers watched in fascination in July 1997 as the Mars "rover" Sojourner (named after Sojourner Truth) maneuvered around the Red Planet's surface like an interplanetary dune buggy, sending back pictures of rocks and boulders that were given whimsical names by mission scientists (e.g., Yogi, Scooby-Doo). Mishkin, senior systems engineer at NASA's Jet Propulsion Laboratory, where the rover was developed, chronicles the years of trial and error to create a vehicle that would be the right size for the Pathfinder lander and could withstand the temperature extremes on the Martian surface while maneuvering around rocks without getting stuck or driving over the edge of an abyss. It takes 40 minutes for a signal to travel from Mars to Earth and back, so JPL scientists had to make the rover's navigational systems as self-sufficient as possible. The author details how software and hardware teams often clashed over the best ways to solve the problems they encountered during development. Mishkin himself discovered a potentially fatal error shortly before launch: a wrong parameter in the computer clock would have woken Sojourner in the middle of the night instead of in the morning, but the robot needed sunlight to function. Mishkin's detailed history undoubtedly will interest engineers and dedicated science techies, but readers looking for an account of Sojourner's accomplishments on Mars will be disappointed-the rover's 80 days of exploration are given one quick chapter. Nevertheless, Mishkin has written a valuable chronicle of one of NASA's only mission in the past decade to have captured the public's imagination. Photos not seen by PW.
Copyright 2003 Reed Business Information, Inc.

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