A black hole is a mysterious and extremely dense object. A black hole cannot be seen directly,but it can be revealed by stars moving around it — or sometimes by a hot, bright disk of material orbiting it. Some black holes are stellar remnants, others are supermassive ones in the centers of most large galaxies. Scientists have theorized that in a Black Hole’s center, gravity is so strong due to infinite density that the spacetime curvature ( e.g. gravity) becomes infinite. This is called a singularity and is described by general relativity. A black hole’s event horizon marks the point where not even light can escape. Tidal forces will shred and “spagettify” any object close to the event horizon.
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