Space-Time

Space-time is a concept in physics that combines the three dimensions of space (length, width, height) with the fourth dimension of time into a single four-dimensional framework. In this view, the universe is not just a stage where events happen, but rather a dynamic entity where time and space are interconnected. According to Einstein's theory of relativity, massive objects like planets and stars can bend this space-time fabric, influencing the motion of other objects and the passage of time itself. This intertwining helps explain phenomena like gravity and the behavior of light in the universe.