Black holes are like super strong magnets for light. When light passes near them, they pull it in and stretch it out, kind of like when you look at a rubber band being stretched from one side.
Examples
- A flashlight shines near a black hole, the beam gets stretched like silly string.
- Light from a distant galaxy appears squished into an arc around a black hole.
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See also
- What causes gravity according to the curvature of spacetime?
- How do black holes bend light and time?
- Why Do Black Holes Actually 'Eat' Stuff?
- Why Do Black Holes Glitch?
- Why Do Black Holes Actually ‘Suck’ Things In?