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Slingshotting

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Voyager 2 path

The Planetary Grand Tour trajectory of Voyager 2.

Slingshotting is a practice where a pilot uses the gravity well, also known as the gravitational field or pull, of an astronomical body to get a boost in velocity. This is done by closely skimming a sufficiently large gravity well, essentially beginning to "fall" into the well, but staying just far enough to avoid being captured by said well. A portion of this velocity is retained from this "falling" upon exiting the gravity well. The phenomena is more formally known as a gravitational-assist.

The opposite of the slingshot manuever, is aerobraking, wherein the planet's atmosphere is used to slowdown or change the orbit of a spacecraft.

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Alright, Darling! Saddle Up! Slingshot Time00:30

Alright, Darling! Saddle Up! Slingshot Time.

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