Black holes at the center of our galaxies have so much gravity that even light can escape from them if it gets too close. This is just a bigger and more pronounced effect of what you probably know from your astronomy classes or science class when you learn about planets being able to be on orbits. If like i mentioned the photonsphere earlier you can get light bending around black holes multiple times.
What is the shape of spacetime? Neil deGrasse Tyson and comedian Chuck Nice discover the structure of the universe, spacetime geometry, and relativity with theoretical physicist at Princeton Gravity Initiative, Delilah Gates.
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