Astronomy Fundamentals

Medieval Andrenaissance Astronomy

What is Newton’s Law of Universal Gravitation?

According to Newton’s Law of Universal Gravitation, every object in the universe exerts a pulling force on every other object; this force between any two objects is directly proportional to the product of their masses, and it is inversely proportional to the square of the distance between the two objects. In other words, gravity follows what is known as the “inverse square law”: a mathematical relationship that governs both the strength of gravity and the propagation of light in space.


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