Whose mission first demonstrated that a spacecraft could use gravity assist to change speed and direction around a planet?
Quick Answer
That technique became famous through NASA's Mariner and Voyager missions, especially Mariner 10 and Voyager 1. Gravity assist was developed and first used in planetary flight planning by engineers such as Michael Minovitch and mission teams in the 1960s and 1970s.
The Full Story
The gravity-assist technique was pioneered in mission planning by Michael Minovitch in the early 1960s and later used in major interplanetary missions. It lets a spacecraft borrow energy from a planet's motion to alter its trajectory without using much fuel. Mariner 10 used a Venus flyby in 1974, and the Voyager spacecraft used multiple gravity assists to tour the outer Solar System. This idea revolutionized practical deep-space travel.
Key Facts
YouTube Angle
Suggested video title for this topic:
"How do you visit multiple planets on a fuel budget? Gravity assists."
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