gravitationskällor
Gravitationskällor are objects or phenomena that possess mass or energy and therefore exert a gravitational force on other objects with mass or energy. According to Einstein's theory of general relativity, gravity is not a force in the traditional sense but rather a curvature of spacetime caused by the presence of mass and energy. Therefore, any distribution of mass or energy acts as a source of gravity.
Common examples of gravitationskällor in the universe include stars, planets, moons, asteroids, and comets. These celestial
Beyond ordinary matter, other phenomena also act as gravitationskällor. Black holes, for example, are regions of