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Looking Into a Stellar-Mass Black Hole | NASA GSFC Space Science Full HD


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Gas is heated to 20 million degrees F. as it spirals in towards the black hole, radiating low-energy X-rays. Later, just before making a final plunge towards the center, the gas is approaching the speed of light and emits high-energy x-rays. This is the corona, a region of tenuous and much hotter gas around the disk. Coronal temperatures reach billions of degrees.

The "event horizon" marks the boundary where all trajectories, including light, must go inward. Nothing that passes the event horizon can ever leave the black hole.

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Credits: NASA Goddard Space Flight Center
Music: "Lost in Space" by Lars Leonhard



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