Gravitation, also known as gravitational attraction, is the mutual attraction between all masses in the universe. Gravity is the gravitational attraction at the surface of a planet or other … See more

In modern physics, general relativity remains the framework for the understanding of gravity. Physicists continue to work to find solutions to the Einstein field equations See more

Earth's gravity
Every planetary body (including the Earth) is surrounded by its own gravitational field, which can be … See more

Historical alternative theories
• Aristotelian theory of gravity
• Le Sage's theory of gravitation (1784) also called LeSage gravity but originally proposed by Fatio and further … See more

Ancient world
The nature and mechanism of gravity were explored by a wide range of ancient scholars. In See more

There are some observations that are not adequately accounted for, which may point to the need for better theories of gravity or perhaps be explained in other ways.
• Extra-fast stars: Stars in galaxies follow a distribution of velocities where stars on the outskirts are … See more

• Anti-gravity – Idea of creating a place or object that is free from the force of gravity
• Artificial gravity – Use of circular rotational force to mimic gravity See more