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What is gravity? The force that attracts a body toward the center of the earth, or toward any other physical body having mass. What was Newton's big part in gravity?
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Unit of measurement that is determined by the mass of the object and the strength of gravitational force. It can be changed based on the planet you are on.
Newton’s universal law of gravitation says that the force acting upon (and therefore the acceleration of) an object toward Earth should be inversely proportional to the square of its distance from the center of Earth.
Definition. Gravity is a fundamental force of nature that attracts two bodies with mass towards each other. It governs the motion of planets, stars, and galaxies and is described by both Newton's Universal Law of Gravitation and Einstein's theory of General Relativity.
According to the general theory of relativity, gravity can be understood as bends and curves in the fabric of space-time that affect the motions of galaxies, stars, planets, and even light. Anything with mass makes a dent in space-time, causing objects to be attracted to each other.
Gravitational waves are a new branch of astronomy, providing a complementary way to study astrophysical systems to the standard light-based observations. Researchers use GR to provide “templates” of many possible gravitational wave signals, which is how they identify the source and its properties.
