In physics, gravity (from Latin gravitas 'weight'[1]), also known as gravitation or a gravitational interaction, [2] is a fundamental interaction, which may be described as the effect of a field that is …

In this section, we study the nature of the gravitational force for objects as small as ourselves and for systems as massive as entire galaxies. We show how the gravitational force affects objects on Earth …

4 days ago · gravity, in mechanics, the universal force of attraction acting between all bodies of matter. It is by far the weakest known force in nature and thus plays no role in determining the internal …

Sep 25, 2025 · The answer is gravity: an invisible force that pulls objects toward each other. Earth's gravity is what keeps you on the ground and what makes things fall. An animation of gravity at work. …

Gravitation is a fundamental force of nature that governs the motion of objects throughout the universe. It is the attractive force that draws two bodies toward one another, resulting in a pull that depends on …

Our modern understanding of gravity comes from Albert Einstein’s theory of general relativity, which stands as one of the best-tested theories in science.

Jul 19, 2025 · Combining both theories, Newton formulated a universal law of gravitation in the 17th century, which was accurate for every corner of the universe. Newton’s Law of Universal Gravitation …

Gravity or gravitation is a natural phenomenon by which all things with energy are brought toward (or gravitate toward) one another, including stars, planets, galaxies, and even light and sub-atomic …

There is no terrestrial gravitation for Earth and no celestial gravitation for the planets, but rather a universal gravitation for everything. Every object in the universe attracts every other object in the …

Use the Newton's Law of Universal Gravitation widget below to investigate the effect of the object masses and separation distance upon the amount of gravitational attraction.