Isaac newton discovered gravity.
Gravity exists because mass exists.
Gravity exists everywhere that mass exists, so the answer is yes.
Gravity is a natural force that exists everywhere in the universe. It is what keeps planets in orbit around the sun and objects on Earth from floating into space. Gravity is always present, whether you are on the Earth, in space, or on another celestial body.
Gravity is a force that pulls two objects together. Gravity exists between two objects that have mass. Gravity exists in the whole universe
Gravity does not occur in mudslides. Gravity exists wherever there is mass.
The force of gravity exists all across the Earth's surface.
Gallo
Your question is ambiguous. Are you asking why gravity exists or is gravity or more to the point can Gravity/Magnetism be used as an energy source.
Gravity is a fundamental force of nature that exists throughout the universe and is constantly acting upon objects with mass. It does not need to be "found" as it is always present. Scientists study, understand, and quantify gravity to explain how objects are attracted to each other and how celestial bodies interact in space.
Gravity is the force of attraction that exists between all objects in the universe.
The force of attraction that exists between any two objects is called gravity.
Gravity is like the air existing everywhere around you. You can feel it but cannot see it. Gravity exists because mass exists between 2 objects. If you have mass and an object beside you have mass then gravity will automatically come into existence and attract you towards that object.