The equation E = mc^2 is one of the most famous equations in physics, formulated by Albert Einstein in his theory of relativity. It relates energy (E) to mass (m) and the speed of light in a vacuum (c).

The equation states that the energy (E) of an object is equal to its mass (m) multiplied by the square of the speed of light (c) in a vacuum. In other words, it implies that mass and energy are interchangeable and that a small amount of mass can be converted into a large amount of energy, and vice versa.

This equation is often interpreted to mean that mass can be converted into energy through processes such as nuclear reactions, as demonstrated by the famous equation E = mc^2. It has significant implications in fields such as nuclear physics and provides a theoretical basis for understanding the immense energy released in nuclear reactions, as well as the relationship between mass and energy in the universe.