<p>Not even light can escape a black hole's gravitational pull, so how do we actually know they exist? And what's the deal with the supermassive black hole at the center of the Milky Way?</p>

Not even light can escape a black hole's gravitational pull, so how do we actually know they exist? And what's the deal with the supermassive black hole at the center of the Milky Way?

392 - How We Know a Supermassive Black Hole Lurks in the Center of Our Galaxy

How do astronomers photograph a black hole? How often do planes get hit by lightning? What does the EPA actually do? Science is all around us and transforming our world at a rapid pace. Extragalactic astrophysicist Sabrina Stierwalt is here to guide you through it. She'll help you make sense of the everyday and the once-in-a-lifetime. Rights of Albert Einstein are used with permission of The Hebrew University of Jerusalem. Represented exclusively by Greenlight.

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392 - How We Know a Supermassive Black Hole Lurks in the Center of Our Galaxy

392 - How We Know a Supermassive Black Hole Lurks in the Center of Our Galaxy

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