The equation �=��2E=mc2 is one of the most famous equations in physics, proposed by Albert Einstein as part of his theory of relativity. This equation relates energy (�E), mass (�m), and the speed of light in a vacuum (�c).

Here's why it's possible and what it means:

1. Mass-Energy Equivalence: The equation �=��2E=mc2 suggests that mass and energy are interchangeable and equivalent forms. It implies that mass can be converted into energy and vice versa.

2. Special Theory of Relativity: Einstein derived �=��2E=mc2 as a consequence of his special theory of relativity, which revolutionized our understanding of space, time, and gravity. According to this theory, energy and mass are not separate entities but different manifestations of the same underlying concept.

3. Speed of Light: The speed of light, �c, is a fundamental constant in the universe, approximately 3.00×1083.00×108 meters per second. It represents the maximum speed at which information and energy can travel through space.