The space-time continuum is a concept in physics that combines the three dimensions of space with the fourth dimension of time into a single four-dimensional framework. This idea, introduced by Albert Einstein in his theory of relativity, suggests that the fabric of the universe is interconnected, meaning that events are not just located in space but also occur at specific moments in time. In this continuum, objects with mass, like planets and stars, can warp the fabric of space-time, creating gravitational effects. This means that the presence of mass can influence the movement of other objects, leading to phenomena such as the bending of light around massive bodies, known as gravitational lensing.