Gravity is universal and Newton's law of universal gravitation extends gravity beyond earth. This force of gravitational attraction is directly dependent upon the masses of both objects and inversely proportional to the square of the distance that separates their centers.
Tha an iom-tharraing uile-choitcheann is sìnidh lagh an iom-tharraing uile-choitcheann aig Newton thar crìochan na talmhainn. Crochaidh cumhachd-thàlaidh na h-iom-tharraing gu dìreach air tomad an dà nì is tha i co-rèireach mùiteach ris an astar cheàrnagach eadar meadhanan an dà nì.