They estimate that, that black hole is some 55 million light-years away.
The theory of the speed of light is 186,282.397 mile/second, 670,616,629.2 mile/hour.
The average distance from the Sun to the Earth is ~149,597,886 km (92,955,817 miles), which means that light only takes about 8 minutes to make that journey.
That works out to about 5,878,500,000 billion miles per year...
And again... They estimate that, that black hole is some 55 million light-years away. (multiple 55,000,000 times 5,878,500,000 billion miles). And they couldn't even explain accurate information about our 9th planet "Pluto". Plus many of those over paid scientist believe that there is a 10th planet, floating Somewhere around Our solar system, but haven't found it yet...! Why do they even Care about something That far away, that we will never, never, NEVER physically Reach. Even if it was headed in our direction, mankind would most likely be Extinct by time it reached Earth. The National Science Foundation should spend That time and money on more reasonable studies, that would Help mankind... (Yea... I know that my comment is going to piss someone off ).