Universe  ID: 11476

Hunting Black Holes

Story by Matt Davenport Released on April 22, 2014
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To find darkness, scientists search the universe for light.
Spotting black holes is tricky. Because they don’t give off light, astronomers have a difficult time pinpointing their location. But when a black hole gets close enough to an object, like a star, for example, and begins consuming the object's mass, the matter that pours into its gravitational clutches can get so hot that it glows and releases energy in the form of X-ray light. The most powerful X-rays are emitted from the hottest material swirling just outside the edge of the black hole. By observing this light with space telescopes, scientists can determine where black holes are hiding in the cosmos. Watch the video to see a black hole in action.
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Watch this animation to see a black hole feed on a nearby star.
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Material stolen from the star forms a rotating disk that collects around the black hole.
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As material spirals toward the black hole, it reaches temperatures of millions of degrees Fahrenheit and produces X-rays.
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NASA's Swift spacecraft captured this image of X-rays coming from Sagittarius A*, the black hole at the center of the Milky Way.
 

Related Story

Matter Rides a Wave Around a Black Hole

Story Credits

Visualizer/Animator:
Dana Berry (Skyworks Digital)

Producer:
Michael McClare (HTSI)

Lead Writer:
Matt Davenport (USRA)

Please give credit for this item to:
NASA's Goddard Space Flight Center
Sagittarius A* image courtesy of NASA/Swift/University of Michigan/N. Degenaar

Short URL to share this page:
https://svs.gsfc.nasa.gov/11476

Keywords:
SVS >> App
NASA Science >> Universe