Gravity has an infinite range, although its effects become weaker as objects get farther away. Gravity is described by the general theory of relativity, proposed by Albert Einstein in 1915, which describes …

Jan 14, 2026 · 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 …

Jan 20, 2026 · 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. …

Mar 4, 2025 · Learn what gravity is in physics and astronomy. Get the definition, formulas, and table of gravity on other planets.

Gravity is the force of fundamental attraction between all things that have mass or energy. It feels powerful to us in our daily lives, but it is by far the weakest of the four known forces in nature.

Sep 5, 2023 · Gravity is a force that we experience every day, yet it remains somewhat of a mystery. It's the reason we stay grounded on Earth and why objects fall when dropped. Although there are …

Newton’s universal law of gravitation, formulated in his great work of mathematical physics, the Principia, published in 1687, was the first great work of force unification in physics.

Aug 26, 2025 · Gravity is not a passive force; it actively shapes the structure of the universe. Stars form from clouds of gas collapsing under their own gravity, igniting nuclear fusion at their cores.

The gravitational constant G is a key quantity in Newton's law of universal gravitation. The gravitational constant is an empirical physical constant that gives the strength of the gravitational field induced by …

Apr 28, 2025 · Every time you drop a ball, leap into the air, or feel the reassuring weight of your body anchored to the ground, you are experiencing the mysterious phenomenon known as gravity. Gravity …