1937862
9781587362668
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Learn more about: our solar system, where the sun goes, gravitational force, the true orbit of Halley's comet, how the moon triggers earthquakes, the solar system's four seasons and how they affect the ozone...and most importantly, what all this means to us!Sullivan, Charles J. is the author of 'Defining Gravity the Sully Way', published 2004 under ISBN 9781587362668 and ISBN 158736266X.
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