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From
phys
Black holes are extremely powerful and efficient engines that not only swallow up matter, but also return a lot of energy to the Universe in exchange for the mass they eat. 
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Using observations from NASA's Rossi X-ray Timing Explorer (RXTE) satellite and the National Science Foundation's (NSF) Very Long Baseline Array (VLBA) radio telescope, an international team of astronomers has identified the moment when a black hole in our galaxy launched superfast knots of gas into space.
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A collaboration of scientists at the Heidelberg Institute for Theoretical Studies (HITS) and in Canada and the US have now discovered that diffuse gas in the universe can absorb luminous gamma-ray emission from black holes, heating it up strongly. This surprising result has important implications for the formation of structures in the universe. BLACK HOLES: http://www.scoop.it/t/science-news?tag=Black%20Hole
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![[VIDEO]-Feeling the Ripples of Black Hole Collisions | Science News | Scoop.it](https://img.scoop.it/8wN9f_aWbOqDK8tfSz2BVzl72eJkfbmt4t8yenImKBVvK0kTmF0xjctABnaLJIm9)
Within a decade we should have actual observations of black holes going "bump in the night."...
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