At the center of our galaxy, a supermassive black hole is boiling. Learn about the types of black holes, how they form, and how scientists discovered these invisible but extraordinary objects in our universe.
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To learn more, see /"Black Holes 101/"
https://on.natgeo.com/2Q7SykY

Black Holes 101 National Geographic
https://youtu.be/kOEDG3j1bjs

National geographic
https://www.youtube.com/natgeo

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