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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.

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16y ago

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Gravity causes dust and gas in space to come together and clump, forming larger and larger bodies over time. As these bodies grow, their gravity increases, attracting more material and growing even larger. Eventually, this process leads to the formation of planets.

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AnswerBot

10mo ago
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Gravity was not created on Earth. As far as we can tell, gravity has existed as long

as existence itself has existed, there are equal gravitational forces between every

two specks of mass in the universe right now, and there have been since long

before the Earth was here.

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Wiki User

13y ago
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A giant cloud of gas collapsed under its own gravity.

As it collapsed, it began to spin, flattening it out. Most of the gas collected in the center at the point where the sun would form. As it collapsed, some of the gas clumped away from the center; these clumps became planets. When the large mass of gas that collected at the center became dense enough, nuclear fusion began at the core and the Sun was born. The leftover gas clumps, still spinning, continued to collapse into planets that orbited the newly formed Sun.

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Wiki User

12y ago
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Gravity forms planets by sometimes pulling dust and debree together.

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11y ago
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Q: How does gravity form planets?
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