Gravity,
also known as gravitation, is a force that exists among all material objects in
the universe. For any 2 objects or particles having nonzero mass, the force of
gravity tends to draw in them toward each other.
Gravity is an attractive force between two
masses, two bodies, and two particles.
Gravity is not merely the attraction between Earth and objects.
Gravity
is most precisely described by the general theory of relativity (proposed by
Albert Einstein in 1915), which
describes gravity not as a force, but as a consequence of the space-time
curvature caused by uneven mass distribution.
