The technology used to create virtual environments that simulate real or imaginary worlds is called Virtual Reality (VR). VR immerses users in a digitally created environment, allowing them to interact with 3D spaces using specialized hardware like headsets and motion sensors. This technology finds applications in gaming, education, training simulations, and therapy. By providing an immersive experience, VR enhances learning and entertainment, enabling users to explore worlds and scenarios that might be impossible in the real world.