Gravity assist - Wikipedia
WEBA gravity assist around a planet changes a spacecraft's velocity (relative to the Sun) by entering and leaving the gravitational sphere of influence of a planet. The sum of the kinetic energies of both bodies remains constant (see elastic collision).
Basics of Spaceflight: A Gravity Assist Primer - NASA Science
WEBThe "gravity assist" flyby technique can add or subtract momentum to increase or decrease the energy of a spacecraft's orbit. Generally it has been used in solar orbit, to increase a spacecraft's velocity and propel it outward in the solar system, much farther away from the Sun than its launch vehicle would have been capable of doing.
Gravity Assists - NASA Science
WEBFrom Cassini's launch through the mission's Grand Finale, “gravity assists” were essential to making the spacecraft go where the scientists wanted it to go. This propellant-saving, mission-enabling technique has been used in solar system exploration since the …
Gravity assist - The Planetary Society
WEBSep 27, 2013 · Interplanetary spacecraft often use a maneuver called a gravity assist in order to reach their targets. Voyager 2 famously used gravity assists to visit Jupiter, Saturn, Uranus and Neptune in the late 1970s and 1980s.
How Do Gravity Assists Work? - timeanddate.com
WEBIn a gravity assist maneuver, a spacecraft uses a planet’s gravity and movement around the Sun to help it speed up or slow down. How does this work? Let’s take specific examples from the Voyager 1 and BepiColombo missions.
How “Slingshotting” Works for Space Flight: A Gravity Assist …
WEBJul 10, 2020 · Gravity assist is a space exploration technique that uses the gravitational force of celestial bodies to alter the velocity and trajectory of a spacecraft. A Gravity Assist Primer. The “gravity assist” concept has proven fundamental to exploring our “back yard” — the solar system.
How does the slingshot effect (or gravity assist) work to change …
WEBJul 11, 2005 · How does the slingshot effect (or gravity assist) work to change the orbit of a spacecraft? Jeremy B. Jones, Cassini Navigation Team Chief at NASA's Jet Propulsion Laboratory, explains.
Gravity Assists | Mission – NASA Solar System Exploration
WEBFrom Cassini's launch through the mission's Grand Finale, “gravity assists” were essential to making the spacecraft go where the scientists wanted it to go. This propellant-saving, mission-enabling technique has been used in solar system exploration since the …
Chapter 4: Trajectories - NASA Science
WEBThis momentum can be tapped to accelerate spacecraft on so-called "gravity-assist" trajectories. It is commonly stated in the news media that spacecraft such as Voyager, Galileo, and Cassini use a planet's gravity during a flyby to slingshot it farther into space. How does this work?
NASA’s Lucy to Fly Past Thousands of Objects for Earth Gravity Assist
WEBOn October 16, 2022, NASA’s Lucy spacecraft will fly by the Earth for the first of three gravity assists. During the maneuver, Lucy will pass within 219 miles of the planet (lower than the International Space Station) and will fly through a …