For the first time, scientists have measured rapidly varying temperatures in hot gas emanating from around a black hole. These ultrafast "winds" arc created by disks of matter surrounding black holes, The winds, according to new measurements of a nearby super massive black hole obtained with NASA's Nuclear Spectra scopic Telescope Array (NuSTAR) telescope, can heat up and cool down in the span ol just a tew hours. The bl.ick hole is located in the active galaxy IRAS 13224-3809 in the constellation Ccntaurus. Scientists report these findings, using data from NuSTAR ,and the European Space Agency's XMM Newton telescope, in the journal Nature.
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