General Relativity is [[Albert Einstein]]'s theory of gravity as curvature of spacetime.

Matter and energy tell spacetime how to curve; curved spacetime tells matter how to move.

It replaces Newtonian gravity in regimes with strong gravity, high precision timing, or cosmic scale.

## See also
- [[Albert Einstein]]
- [[Special Relativity]]
- [[Black Hole]]
- [[The Photoelectric Effect]]