That is, if an instantaneous force of gravitational attraction exists between two objects then information about the location of one object would be transmitted to another object instantaneously by changes in the gravitational force. Thus it would be possible to send information faster than the speed of light. The following figure gives a two dimensional representation of what the curved space around a massive star might look like. Space and space-time are not rigid arenas in which events take place. They have form and structure which are influenced by the matter and energy content of the universe.
Space tells matter how to move.
In curved space the rules of Euclidean geometry are changed. Parallel lines can meet, and the sum of the angles in a triangle can be more, or less than 180 degrees, depending on how space is curved. Einstein's theory gave a correct prediction for the perihelion shift of Mercury. Finally, in Einstein's theory the instantaneous gravitational force is replaced by the curvature of spacetime. Moving a mass causes ripples to form in this curvature, and these ripples travel with the same speed as light.