GRAVITY.

Gravity is a natural force that draws all objects towards its center. It played a role in creating the Sun, Earth, and planets. Gravity is the weakest of all natural forces and affects the trajectory of free-falling objects without changing the internal properties of matter. The force of gravity increases with mass, and the Sun has the strongest gravity in our solar system. Neutron stars and black holes have intense gravitational forces, with black holes being so strong that nothing can escape them. Gravity also plays a role in the expansion of the universe and could eventually cause it to shrink in a phenomenon called the Big Crunch. The presence of gravity on the Moon is much weaker than on Earth, allowing for higher jumps. The speed at which objects fall is affected by air resistance, and removing air resistance would show that gravity affects mass equally. Gravity is a force that influences the movement and shape of objects and is responsible for phenomena such as ocean tides, rainfall, and river flow. [Extracted from the article]