God put it there so we wouldn't fly out into space. Very thoughtful wasn't He. response to this Answer The notion of a god putting gravity on Earth 'for us' is a very old fashioned one. It shows no understanding of gravity at all, nor of science. It shows simply the narcissistic, 'humans are the best' filler that filled the space of no knowledge that existed in man before the advent of scientific reasoning. Science has not uncovered evidence for this original unsubstantiated thought of 'for us' about anything. And the more science fails to find a 'for us' in anything, the more we logically conclude that there is increasingly an unlikeliness of a 'for us' existing. Therefore we head, logically, for another thought, the anthropic principle which states, we can exist because of the way things were prior to our existence, not the 'for us' that we can exist because it was so. Evidentially it apparently wasn't made just so. But of course, naturally, we could exist if it just was anyway. Another Answer Gravity doesn't 'form' as blades of grass do not 'form' or light doesn't form. Blades of grass simply grow and light is an emanation of energy as electrons lost their energy flying to lower energy states. In the case of gravity, it is a property of the Universe. Gravity is the result (notice, not the 'formation') of the existence of masses (like planets, which do form, from accumulations of meteors) or small atoms and molecules (which form from the attraction of various particles and influences by certain forces so severly abstruse that quantum physicists are the only people adept at handling them). Mass folds spacetime (the fabric of the Universe) around itself. Imagine stretching a taut tablecloth out. This may represent flat spacetime. Now add a mass like a peach or enormous soccer ball. There is now a dent in your table cloth as you hold it up. This is an approximate analogy of how matter dents (folds) spacetime. Orbiting objects on your tablecloth, given enough speed, would skim around the edge of the dent around the soccer ball, which represents say a star or planet, and the orbiting objects (may use spherical raisins for this) are representative of planets or moons. There is another theory that gravity, in addition to folding spacetime by general relativity, is a manifestation of the transfer of gravitons between masses. Gravitons would have to be massless, to travel long distances (long distances are very abundant in gravitation- the sun's gravity, weak though gravity is as a force, can be felt theoretically as far away as the hypothetical, yet probable Oort cloud). They would emerge by a star for example and shoot off to a planet, exerting an attractive force somehow. They would be able to disobey Pauli and his exclusion principle, building up a massive (think what massive means in the case of something as weak as gravity) force between these two objects. Gravitons have been elusive enough to not yet be detected, but they are hypothesised on logical grounds. Afterall, many other forces have been shown to arise from the interaction of forces emerging from fundamental particles. Still, there is the established theory of General Relativity (curling and folding of spacetime around masses) by Mr. Albert Einstein who was born of the 14th of March.
the planets were formed by gravity because starts had gravity around them witch caused them to become bigger and be planets i think.. idk
All planets have gravity to some degree due to their mass. Gravity is what keeps objects, including planets, in orbit around the sun.
Gravity is the force that keeps the planets in their orbits around the sun. It pulls the planets towards the sun, while their forward motion keeps them from falling into it. Gravity also influences the shape and stability of the planets' orbits.
Mercury has the strongest gravity of the four terrestrial planets. Its gravity is about 38% of Earth's gravity.
Mercury has the highest surface gravity of the terrestrial planets. Its gravity is about 0.38 times that of Earth's gravity.
the planets were formed by gravity because starts had gravity around them witch caused them to become bigger and be planets i think.. idk
Force of gravity is what keeps the planets form colliding.
No. Planets form by a process called accretion, which is driven by gravity. Nobody creates planets.
Obviously they formed in the same manner...Gravity is Gravity!
Planets have gravity because they have mass.
There isn't a zero gravity environment, but if there was, planets wouldn't form. Planets form by very large rock all attracting to each other and gain enough energy that the center pulls the surrounding rock and smooths then into a sphere. So if a zero gravity environment existed. There would be no planets.
The other planets do have gravity.
Yes. All planets have gravity. Earth is one of those inner planets.
The premise of this question is incorrect; all planets have gravity.
No. Planets have gravity as a result of their own mass.
-- Vast hydrogen clouds shrink and compress under the influence of gravity to form stars. -- Tiny particles of dust, gas, and rock aggregate under the influence of gravity to form planets. -- Planets execute motion in closed orbits around stars under the influence of gravity. -- Strapless evening gowns stay up in consideration of the gravity of the situation that would ensue if they did not.
Gravity basically makes things come together, and keep together. For example, due to gravity: * Galaxies form and keep together * Stars form and keep together * Stars get hot enough for nuclear fusion to start * Planets form and keep together * Planets keep around their stars, instead of wandering off into space