describe a main idea of physical science that deals with space and time. * your answer

Brief Explanations:

One of the main ideas in physical science dealing with space and time is Einstein's theory of relativity. Special relativity shows that space and time are intertwined into a single entity called spacetime, and that measurements of time and space are relative to the observer's motion. General relativity further describes how massive objects warp spacetime, affecting the motion of other objects and the flow of time.

Answer:

Einstein's theory of relativity (including special and general relativity) which shows space - time is intertwined and affected by motion and mass.