Move the cursor or touch to move the lensing object.
Made by Denis Shiryaev, shir-man.com
Imagine a heavy ball on a trampoline - it creates a dip that makes marbles roll towards it in a curved path. That's similar to how massive objects in space (like black holes) bend light. When light from distant stars passes near these heavy objects, it bends around them, creating multiple images or making the stars appear in different positions than where they really are. This bending of light by gravity is called gravitational lensing, and it helps astronomers study things in space they can't see directly. The pulsing star in the center helps demonstrate this effect by making it easier to track how the light bends around the black hole.