gravitaatiolähde

Gravitaatiolähde, also known as a source of gravity, refers to any object or distribution of mass that creates a gravitational field. In classical physics, as described by Isaac Newton's law of universal gravitation, any object with mass exerts a gravitational pull on all other objects with mass. The strength of this pull depends on the masses of the objects and the distance between them. Therefore, planets, stars, galaxies, and even subatomic particles can be considered gravitaatiolähteitä.

In Einstein's theory of general relativity, gravity is understood not as a force but as a curvature of spacetime caused by the presence of mass and energy. In this framework, a gravitaatiolähde is an entity that warps the fabric of spacetime around it, and it is this curvature that dictates the motion of other objects. Massive objects like black holes represent particularly strong gravitaatiolähteitä, causing significant distortions in spacetime. Even seemingly empty space can possess gravitational effects if it contains distributed mass or energy, such as dark matter or dark energy. Understanding the nature and distribution of gravitaatiolähteitä is fundamental to comprehending the structure and evolution of the universe.