X-rays Produced by a Black Hole (IMAGE) NASA/Goddard Space Flight Center Caption This frame from the simulation shows the X-rays produced by a black hole (white) and its effects on nearby gas (blue). This scene occurs 400 million years after the universe formed. The black hole, born from a star's collapse 200 million years ago, has grown by less than one percent -- about the mass of our sun -- since. Credit KIPAC/SLAC/M. Alvarez, T. Abel and J. Wise Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.