gravity assist

(redirected from Gravity slingshot)
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Related to Gravity slingshot: Slingshot effect

gravity assist

An astronautical technique whereby a spacecraft takes up a tiny fraction of the orbital energy of a planet that it is flying past, allowing it to change direction and speed. It has been used, for example, in the Voyager and Ulysses missions.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
References in periodicals archive ?
"And then we likely won't see it again for at least a century, after Earth's gravity slingshots the space rock onto a shorter orbit that takes it closer to the sun," he added.