Has anyone seen my black hole? Oh thanks Hubble!

Now that Hubble has new optics, its returning images that are just spectacular. Here's a short life story in the evolutions of black holes; truly one of nature's most fascinating realities.

Galaxies (above), like our own Milky Way contain many billions of stars (~400 billion for ours).  Supernova occur when a star's mass (above left image, lower left Supernova) cannot maintain their equilibrium of exploding and imploding. The result is a blast, which for several minutes, is brighter than the entire galactic core, where billions of other stars exist.

Some times, collapsing star's form ultra-dense stars called neutron stars. The Crab Nebula (above right) is the result of a Supernova with enough matter left to form a Pulsar (type of neutron star, left image).  The Crab Pulsar is believed to be about 28–30 km in diameter; it emits pulses of radiation every 33 milliseconds. Pulses are emitted at wavelengths across the electromagnetic spectrum from radio waves to X-rays. Occasionally, its rotational period shows sharp changes, known as 'glitches', which are believed to be caused by a sudden realignment inside the neutron star. The energy released as the pulsar slows down is enormous, and it powers the emission of the synchrotron radiation of the Crab Nebula, which has a total luminosity about 75,000 times greater than that of our Sun.  Consider, our Sun loses ~4 million tons of mass per second, which is energy converted to radiation (heat + light); E=mc² and does this continuously for ~9-10 billion years!

There's a lot we know, and don't know about Black Holes but in summary, with tools like Hubble, we've found real evidence to support Einstein's prediction of this mind-boggling phenomenon. Black Holes are so heavy and exert such tremendous gravity, that not even light (or any form of matter/radiation) can escape it. Since we can't actually see a black hole, we can only infer it's effects on matter surrounding them.  Typically you need at least 10 solar masses (that is to say, 10 times the mass of our Sun) to collapse inwards, in which at a certain threshold a hole in the fabric of space & time is created.  These two images above are images in X-ray and Infrared radiation, where matter is being heated and pulled into a black hole.  It is now assumed that at the center of every galaxy in our Universe, exists a black hole, as the effects of gravity can be observed from their motions around the galactic center.  Supermassive black holes get even more interesting! 

So where does a black hole go? I suppose a better question is, where is... where?