= Gravity assist
{wiki=Gravity_assist}
Gravity assist, also known as a gravitational slingshot, is a maneuver used in spaceflight to increase or decrease the velocity of a spacecraft by utilizing the gravitational pull of a planet or moon. This technique allows spacecraft to gain energy and change their trajectory without using additional fuel, making it an efficient means of traveling through the solar system. Here's how it works: 1. **Approach the Body**: The spacecraft approaches the target celestial body (like a planet) at a specific angle and speed.
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