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NASA telescope spots strange light from black hole

UNITED STATES, WASHINGTON (OBSERVATORY) — A NASA satellite detected a green and blue light that appeared in the center of a galaxy 22 million light-years from Earth. According to researchers, it came from a black hole devouring another star.

NASA’s X-ray space telescope, NuSTAR, observed a strange green and blue light that had appeared in galaxy NGC 6946, 22 million light-years from Earth. Ten days later, this same light was spotted by the Chandra X-ray Observatory.

A study published in the journal Astrophysical Journal provides a probable explanation for this phenomenon. According to its authors, it is possible that the light comes from a black hole “devouring” another star.

When an object approaches too close to a black hole , it may be shredded by gravity, after which its debris is in orbit near the black hole. Those near its inner edge move so fast that they heat to about 5,000 ° C and radiate X-rays.

It is probably for this reason that the NuSTAR telescope has located a source of green light. According to Hannah Earnshaw of the California Institute of Technology, these results are “a step towards understanding rarer and more extreme cases in which matter is growing into a black hole or a neutron star “.


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