History Main / AllGravityIsTheSame

Compare to AllPlanetsAreEarthLike (where an alien planet has a climate capable of supporting life). SubTrope of ArtisticLicenseAstronomy. See also GravitySucks.

** During the Tournament of Power in ''Anime/DragonballSuper'', the Grand Minister justifies the trope by causing the gravity in the arena to affect everyone differently (he's an angel, he can do that), as in everybody feels the same gravity they would on their respective homeworlds. He did this to ensure {{Heavyworlders}} would not have an innate advantage.

* Zig-zagged in ''Anime/DragonBallZ''. While there are probably more exceptions than straight examples, that doesn't change the fact that it's assumed to be the norm that all planets have a gravitational pull of 1G. For example, Pui Pui believes that by fighting on his home planet with has gravity ten times that of Earth, it will give him an advantage... without realizing that Vegeta's home planet also has 10x Earth's gravity, and in fact Vegeta trains in chambers with hundreds of times Earth's gravity.

* Zig-zagged in ''Anime/DragonBallZ''. While there are probably more exceptions than straight examples, that doesn't change the fact that it's assumed to be the norm that all planets have a gravitational pull of 1G. For example, Pui Pui believes that by fighting on his home planet with has gravity ten times that of Earth, it will give him an advantage... without realizing that Vegeta's home planet also has 10x Earth's gravity, and in fact trains in chambers with hundreds of times Earth's gravity.

In ScienceFiction settings, characters will often travel to other planets. In real life, gravity is determined by the mass of the object in space - the higher the mass, the higher the force of gravity. While astronauts will ''bounce'' on the moon, they would not be able to jump nearly as high on Jupiter as they can here on Earth.

* Zig-zagged in ''Manga/DragonBallZ''. While there are probably more exceptions than straight examples, that doesn't change the fact that it's assumed to be the norm that all planets have a gravitational pull of 1G. For example, Pui Pui believes that by fighting on his home planet with has gravity ten times that of Earth, it will give him an advantage... without realizing that Vegeta's home planet also has 10x Earth's gravity, and in fact trains in chambers with hundreds of times Earth's gravity.

* ZigZagged in ''Franchise/MassEffect'': high-gravity planets are acknowledged in the dialogue, e.g. with the elcor species, which is adapted to the extremely high gravity of their home planet. However, no planet you visit in the original trilogy has a gravity that isn't within the 0.9 to 1.1 range of Earth's (unless Earth's moon Luna and the asteroid from [[{{VideoGame/MassEffect1}} the first game]]'s DLC mission "Bring Down The Sky" qualify), and even ''those'' discrepancies have no impact on gameplay or even on animations during CutScenes. ''VideoGame/MassEffectAndromeda'' does include some real gravitational variation, however -- one of the places you visit has gravity low enough to affect your vehicle's handling, enabling jumps you wouldn't be able to pull of elsewhere.

* ZigZagged in ''Franchise/MassEffect'': high-gravity planets are acknowledged in the dialogue, e.g. with the elcor species, which is adapted to the extremely high gravity of their home planet. However, no planet you visit in the original trilogy has a gravity that isn't within the 0.9 to 1.1 range of Earth's (unless Earth's moon Luna counts), and even ''those'' discrepancies have no impact on gameplay or even on animations during CutScenes. ''VideoGame/MassEffectAndromeda'' does include some real gravitational variation, however -- one of the places you visit has gravity low enough to affect your vehicle's handling, enabling jumps you wouldn't be able to pull of elsewhere.

* ZigZagged in ''Franchise/MassEffect'': high-gravity planets are acknowledged in the dialogue, e.g. with the elcor species, which is adapted to the extremely high gravity of their home planet. However, no planet you visit in the original trilogy has a gravity that isn't within the 0.9 to 1.1 range of Earth's, and the even those discrepancies have no impact on gameplay or even on animations. ''VideoGame/MassEffectAndromeda'' does include some real gravitational variation, however -- one of the places you visit has gravity low enough to affect your vehicle's handling, enabling jumps you wouldn't be able to pull of elsewhere.

* Invoked in ''Film/{{Armageddon}}'' - the drill team have upwards-pointing thrusters on their spacesuits and rovers to provide a false sense of gravity on the asteroid. At one point they turn them off in order to jump a chasm.

* None of the alternate planets or moons that can be explored in ''VideoGame/{{Destiny}}'' present any gameplay changes regarding exploration - e.g., the player can jump as high on Earth as they can on Mars without any assistance, players can sprint or slide on every planet as fluidly as on Earth, etcetera. In RealLife, all jetpacks and vehicles would certainly have to be adjusted to accommodate each separate location's different gravitational pull. [[JustifiedTrope Somewhat justified]] on Venus, as it has a similar mass to Earth in RealLife.

In fiction, however, gravity does not work that way. All planets will have the same force of gravity, regardless of the planet's mass. Characters will walk, run, and jump around on a planet that has twice the mass of Neptune as easily as they will on planet Earth. This can be [[JustifiedTrope justified]] if the setting establishes that ArtificialGravity is commonplace. It does ''not'' apply to spaceships that would need ArtificialGravity regardless. Can be considered an [[AcceptableBreaksFromReality acceptable break from reality]], especially for low budget live-action works that can't realistically portray higher or lower gravity.

In science-fiction settings, characters will often travel to other planets. In real life, gravity is determined by the mass of the object in space - the higher the mass, the higher the force of gravity. While astronauts will ''bounce'' on the moon, they would not be able to jump nearly as high on Jupiter as they can here on Earth.

[[/folder]]

* ZigZagged in ''Franchise/MassEffect'': high-gravity planets are acknowledged in the dialogue, e.g. with the elcor species, which is adapted to the extremely high gravity of their home planet. However, no planet you ever visit has a gravity that isn't within the 0.9 to 1.1 range of Earth's, and the even those discrepancies have no impact on gameplay or even on animations.

* Any object with the same mass as Earth would have the same amount of gravitational pull. For example, Venus is the closest object in the Solar System to Earth in terms of mass, so its force of gravity is very similar to Earth's.

* ''WesternAnimation/StevenUniverse'': When Steven visits other planets, they typically have the same gravity as Earth. However, an exception was made when he went to Earth's Moon, as he bounced around while the Gem's bodies automatically adjusted for the lessened gravity.

In fiction, however, gravity does not work that way. All planets will have the same force of gravity, regardless of the planet's mass. Characters will walk, run, and jump around on a planet that has twice the mass of Neptune as easily as they will on planet Earth. This can be [[JustifiedTrope justified]] if the setting establishes that ArtificialGravity is commonplace. It does ''not'' apply to spaceships that would need ArtificialGravity regardless. Can be considered an [[AcceptableBreaksFromReality acceptable break from reality]].

* Invoked in ''Film/Armageddon'' - the drill team have upwards-pointing thrusters on their spacesuits and rovers to provide a false sense of gravity on the asteroid. At one point they turn them off in order to jump a chasm.

* Invoked in ''Film/{{Armageddon}}'' - the drill team have upwards-pointing thrusters on their spacesuits and rovers to provide a false sense of gravity on the asteroid. At one point they turn them off in order to jump a chasm.

* ZigZagged in ''Franchise/MassEffect'': High-gravity planets are acknowledged in the dialogue, e.g. with the elcor species, which is adapted to the extremely high gravity of their home planet. However, no planet you ever visit has a gravity that isn't within the 0.9 to 1.1 range of Earth's, and the even those discrepancies have no impact on gameplay or even on animations.
* With the exception of one level in ''VideoGame/Borderlands3'', all the planets the player visits have the same gravity as Pandora.

* Invoked in ''Film/Armageddon'' - the drill team have upwards-pointing thrusters on their spacesuits and rovers to provide a false sense of gravity on the asteroid. At one point they turn them off in order to jump a chasm.

* Zig-zagged in ''Manga/DragonBallZ''. While there are probably more exceptions than straight examples, that doesn't change the fact that it's assumed to be the norm that all planets have a gravitational pull of 1G. For example, Pui Pui believes that by fighting on his home planet with has gravity ten times that of Earth, it will give him an advantage... without realizing that Vegeta's home planet also has 10 times Earth's gravity, and in fact trains in chambers with hundreds of times Earth's gravity.

* Zigzagged with ''ComicBook/{{Superman}}'' comics. While Krypton's higher gravity is an explanation for a Kryptonian's improved biology compared to humans (even when ignoring the presence of a yellow star), all works that take place on Krypton essentially treat it as just a weird-looking Earth.

* Invoked in ''Film/{{Armageddon}}'' - the drill team have upwards-pointing thrusters on their spacesuits and rovers to provide a false sense of gravity on the asteroid. At one point they turn them off in order to jump a chasm.

* Film/TransformersFilmSeries:
** ''Film/TransformersDarkOfTheMoon'' shows Cybertron to dwarf Earth, yet in the flashback prologue all of the robots move no differently than they do on Earth. There is also the problem of the Decepticons teleporting Cybertron directly into Earth's atmosphere, which in real life would be very detrimental to both planets. {{Defied|Trope}} in all scenes that take place on Earth's moon, however, where all characters bounce around in the low-gravity environment.

[[folder:Live-Action TV]]

* In ''TabletopGame/Space1889'', Mars has 0.9G for some inexplicable reason. Presumably either to explain why it has a breathable atmosphere or to avoid writing up rules for Martian gravity.

* ''Franchise/{{Halo}}'': All the planets and superstructures visited in the series have the same gravity as Earth. A few species like Brutes are said to come from planets with higher gravity but they seemingly have no trouble walking around in Earth-scale gravity.
* In ''VideoGame/SuperMarioGalaxy'', the gravity of the various planets, planetoids and other structures in no way affect how Mario (or Luigi, if you're playing as him) moves. In the case of artificial platforms and starships like Rosalina's Comet Observatory, it is possible that the ArtificialGravity accommodates to Mario's personal sense of gravity, but the miniature planets (both regular whole ones and [[UnrealisticBlackHole the crumbling shells with quantum singularities at their centers]]) are less justifiable. The scientific implications of this according to Austin on ''[[WebVideo/GameTheory THE SCIENCE]]'' are "[[https://www.youtube.com/watch?v=EcmzKbJsWtw&list=ULVoinS21NcPY&index=369 god damn terrifying!]]"

* Despite all the planets visited in ''WesternAnimation/{{Futurama}}'', and the writers usually being very knowledgeable about such things, the only time differences in gravity come up is in "Brannigan Begin Again" when the crew go to a planet with greater gravity than Earth. Leela warns the crew to use a special hovercart for the delivery, and as soon as they step outside the ship, they are affected by the heavier gravity (Kif instantly slumps to the ground like a stone).

* Zig-zagged in ''Manga/DragonBallZ''. While there are probably more exceptions than straight examples, that doesn't change the fact that it's assumed to be the norm that all planets have a gravitational pull of 1G. For example, Pui Pui believes that by fighting on his home planet with has gravity ten times that of Earth, it will give him an advantage... without realizing that Vegeta's home planet also has 10x Earth's gravity, and in fact trains in chambers with hundreds of times Earth's gravity.

* Zigzagged with ''ComicBook/{{Superman}}'' comics. While Krypton's higher gravity is an explanation for a Kryptonian's improved biology compared to humans (even when ignoring the presence of a yellow star), all works that take place on Krypton essentially treat it as just a weird looking Earth.

* Invoked in ''Film/Armageddon'' - the drill team have upwards-pointing thrusters on their spacesuits and rovers to provide a false sense of gravity on the asteroid. At one point they turn them off in order to jump a chasm.

* Film/TransformersFilmSeries
** ''Film/TransformersDarkOfTheMoon'' shows Cybertron to dwarf Earth, yet in the flashback prologue all of the robots move no differently than they do on Earth. There is also the problem of the Decepticons teleporting Cybertron directly into Earth's atmosphere, which in real life would be very detrimental to both planets. [[DefiedTrope Defied]] in all scenes that takes place on Earth's moon, however, where all characters bounce around in the low-gravity environment.

[[folder:Live Action TV]]

* In ''TabletopGame/{{Space1889}}'' Mars has .9 gs for some inexplicable reason. Presumably either to explain why it has a breathable atmosphere or to avoid writing up rules for Martian gravity.

* ''{{Franchise/Halo}}'': All the planets and superstructures visited in the series have the same gravity as Earth. A few species like Brutes are said to come from planets with higher gravity but they seemingly have no trouble walking around in Earth-scale gravity.
* In ''VideoGame/SuperMarioGalaxy'', the gravity of the various planets, planetoids and other structures in no way effect how Mario (or Luigi if you're playing as him) moves. In the case of artificial platforms and starships like Rosalina's Comet Observatory, it is possible that the ArtificialGravity accomodates to Mario's personal sense of gravity, but the miniature planets (both regular whole ones and [[UnrealisticBlackHole the crumbling shells with quantum singularities at their centers]]) are less justifiable. The scientific implications of this according to Austin on ''[[WebVideo/GameTheory THE SCIENCE]]'' are "[[https://www.youtube.com/watch?v=EcmzKbJsWtw&list=ULVoinS21NcPY&index=369 god damn terrifying!]]"

* Despite all the planets visited in ''WesternAnimation/{{Futurama}}'', and the writers usually being very knowledgeable about such things, the only time differences in gravity comes up is in "Brannigan Begin Again" when the crew go to a planet with greater gravity than Earth. Leela warns the crew to use a special hovercart for the delivery, and as soon as they step outside the ship, they are affected by the heavier gravity (Kif instantly slumps to the ground like a stone).