There is a gigantic black hole at the center of our galaxy. Will it someday suck us into it?

Black holes have so much gravity that nothing, not even light, can escape them. This one is 4 million times bigger than the sun. Astronomer Robert Massey says that galaxies like ours actually like to form around black holes. In BBC News, Pallab Ghosh quotes Massey as saying, “Although we think of black holes as somehow threatening, in the sense that if you get too close to one you are in trouble, they may have had a role in helping galaxies to form?not just our own, but all galaxies.”

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