Describe the theory of relativity in 3 sentences.
The theory of relativity is a scientific explanation of the laws of physics in relation to non-uniform motion, proposed by Albert Einstein. It consists of two theories: Special Relativity, which explains that the laws of physics are the same for all non-accelerating observers and the speed of light is constant, and General Relativity, which explains that massive objects will cause a distortion in space-time. This theory has been successfully tested and is fundamental for understanding the universe, including phenomena like gravity, time dilation, and black holes.
Complete the following task based on the instruction and optional input provided.### Instruction:
Describe the theory of relativity in 3 sentences.

### Output:
The theory of relativity is a scientific explanation of the laws of physics in relation to non-uniform motion, proposed by Albert Einstein. It consists of two theories: Special Relativity, which explains that the laws of physics are the same for all non-accelerating observers and the speed of light is constant, and General Relativity, which explains that massive objects will cause a distortion in space-time. This theory has been successfully tested and is fundamental for understanding the universe, including phenomena like gravity, time dilation, and black holes.