NASA finds age of 50,000-light-year-long black hole emission
NASA has dated an event about six million years ago when a black hole consumed huge clouds of gas and fired off jets of matter, forming twin lobes of gas extending up to 50,000 light-years. Scientists estimate that the massive black hole at the centre of Milky Way "burped" super-hot gas equalling two million solar masses at 10 million ºC.