gravity assist

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gravity assist

n.
The use of the gravitational field of a moon, planet, or other moving celestial object to change a spacecraft's trajectory, especially to increase its velocity.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
Prado, "Swing-by maneuvers for a cloud of particles with planets of the solar system," WSEAS Transactions on Applied and Theoretical Mechanics, vol.