Evidence of a Black Hole that swallow a Star!

Two studies appearing in the Aug. 25 issue of the journal Nature provide new insights into a cosmic accident that has been streaming X-rays toward Earth since late March. NASA's Swift satellite first alerted astronomers to intense and unusual high-energy flares from the new source in the constellation Draco.

incredibly, this source is still producing X-rays and may remain bright enough for Swift to observe into next year.

Astronomers soon realized the source, known as Swift J1644+57, was the result of a truly extraordinary event -- the awakening of a distant galaxy's dormant black hole as it

shredded and consumed a star. The galaxy is so far away, it took the light from the event approximately 3.9 billion years to reach Earth .

How we detect this extraordinary event?

Most galaxies, including our own, possess a central super-sized black hole weighing millions of times the sun's mass. According to the new studies, the black hole in the galaxy hosting Swift J1644+57 may be twice the mass of the four-million-solar-mass black hole in the center of the Milky Way galaxy. As a star falls toward a black hole, it is ripped apart by intense tides. The gas is corralled into a disk that swirls

around the black hole and becomes rapidly heated to temperatures of millions of degrees.

The innermost gas in the disk spirals toward the black hole, where rapid motion and magnetism create dual, oppositely directed "funnels" through which some particles may escape. Jets driving matter at velocities greater than 90 percent the speed of light?!!! form along the black hole's spin axis. In the case of Swift J1644+57, one of these jets happened to point straight at Earth.

Now NASA satellite detects the radio emissions and X rays from this energy jet .

The event happened approximately 3.9 billion light years away from the Earth!!!,

Now we are seeing it , Then calculate when was the actual incident ? At that time what about our planet?