Check Out This Incredible X-Ray 'Superbubble' That's Nearly 5,000 Light-Years Wide
This incredible image shows a pair of "nuclear superbubbles," one over 4,900 light-years across and the other over 3,500 light-years. They're emanating from the center of the galaxy NGC 3079, likely the result of a central black hole consuming matter and spewing it back out.