Gravitation is a natural phenomenon by which all objects with mass are brought towards one another. It is responsible for the force of attraction between objects in the universe, such as planets, stars, and galaxies.
The law of gravitation was first discovered by Sir Isaac Newton in 1687. He published his theory of gravity in his famous work, "Principia Mathematica".
The force of gravity is directly proportional to the mass of the objects involved. This means that the greater the mass of an object, the greater the force of gravity it exerts on other objects.
Mass is a measure of the amount of matter an object contains, while weight is a measure of the force of gravity acting on an object. Mass remains constant regardless of location, while weight can change depending on the strength of gravity at a particular location.
The force of gravity decreases as the distance between two objects increases. This is described by the inverse-square law, which states that the force of gravity is inversely proportional to the square of the distance between two objects.