Black Hole Vision is an educational application designed for iPhone users that simulates the visual effects of a black hole on the surrounding environment. By utilizing the device's camera, the app overlays a black hole in real-time, demonstrating how it gravitationally lenses light from stars and other objects in the field of view. Users can observe the formation of a 'photon ring'—a phenomenon characteristic of black hole lensing—providing an engaging and interactive way to learn about astrophysics.

The app is open source, encouraging users to explore the underlying science through accessible documentation available on GitHub. Developed with collaboration from researchers at Vanderbilt University, Black Hole Vision not only serves as a visual tool but also connects to future astronomical projects aimed at capturing detailed images of black holes. This free application offers a unique learning experience for those curious about the mysteries of the universe.