Techniques that change a spacecraft's path or speed using planetary gravity or atmosphere rather than fuel alone, such as the Hohmann transfer, gravity assists, the Oberth effect, aerobraking and atmospheric entry. A concept belongs here when its cited article defines a maneuver or an entry process. Members are placed here from their own cited Wikipedia articles, each with a verbatim supporting quotation, so a reader can check why an entry sits in this group. The grouping forms part of the browse path for this section of the atlas.
All Orbital Maneuvers and Entry
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Aerobraking (Wikipedia)
Has Member: Aerobraking, Lead sentenceQuote, Has Member: Aerobraking, Lead sentence
Aerobraking is a spaceflight maneuver that reduces the high point of an elliptical orbit (apoapsis) by flying the vehicle through the atmosphere at the low point of the orbit (periapsis).
Oberth effect (Wikipedia)
Has Member: Oberth Effect, Lead sentenceQuote, Has Member: Oberth Effect, Lead sentence
In astronautics, a powered flyby, or Oberth maneuver, is a maneuver in which a spacecraft falls into a gravity well and then uses its engines to further accelerate, thereby achieving additional change in speed.
Atmospheric entry (Wikipedia)
Has Member: Atmospheric Entry, Lead sentenceQuote, Has Member: Atmospheric Entry, Lead sentence
Atmospheric entry (sometimes listed as Vimpact or Ventry) is the movement of an object from outer space into and through the gases of an atmosphere of a planet, dwarf planet, or natural satellite.
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