Okay, so we all know black holes are theoretical, and only observed by the amount of interference it causes in relation to its nearest star systems. Nobody has ever seen one, and no pictures have ever been recorded. They're existence is based on a guess.
Lets cover a couple of things here.
A star by the name of Epsilon Aurigae has what appears to be "an invisible partner" which shares its common center of gravity. (the star systems center e.g. the sun) Epsilon Aurigae, during certain points of its view from earth, becomes faded. This was scientists first clue to the existence of black holes. Scientists explain how a star, after billions of years, exausts its nuclear resources and implodes violently on itself, after it begins to cool. Our sun is estimated to do this in another 8 billion years or so.
When it does this, it will join a group of planetary entities known as "white dwarfs". Now a white dwarf has the potential of becoming a black hole, depending on its size. If it squeezes too tightly, the core will heat up and its density will react in a massive explosion of light and matter, known as a Supernova. When this happens, a tiny part of the star remains at the center, compressed under immense gravitational pull. This is known as the neutron star. Its estimated that a star 50 times the size of our sun, would condense so small, that if at 66.6% or less of the volume of a neutron star, nothing caught in the pull would be able to escape, not even light. This is the theory of how a black hole is born.
since they produce no light nor radio waves, they can only be speculated about, based on their behavior around other stars.
A supergiant star in the cygnus constellation, called HDE 226868 is paired with a black hole anomaly. It appears to be losing clouds of swirling gas into its invisible partner. Once the gas gets close enough it becomes invisible, presumably consumed by the gravity from the black hole. At this point the gas is entering the black holes event horizon.
An event horizon, in a nutshell, is the black holes point of no return. If an astronaut was attempting to pass through one, assuming he could survive, would notice his vessel be slowly torn to pieces as it was condensing and stretching into the event horizon. His body would be stretched into a string miles long from one side to the other, as it entered the hole. A clock in the distance would appear to be moving incredibly fast, while his wrist watch wouldnt register any time passing at all. Of course the black hole would have to be billions and billions of times the size of our own sun, for the falling process to even be noticed. A star one billion times the size of our sun would collapse into a black hole about 40 miles across and would have an elapsed falling time of 10 seconds. While smaller stars like our sun would condense into even smaller black holes and have an elapsed falling time of only millionths of a second. But if we can imagine the process taking a minute or so, we can place ourselves there.
While our sun, is forever exploding, its power output, is weak in comparison to other existing bodies. For instance, the human body puts out more energy a second than the entire sun, in relation to its volume. So the sun, is a slow motion, nuclear reaction, with the same nuclear fusion process at its core, that is present in the hydrogen bomb. While the sun is forever exploding at a slow rate, a black hole is forever imploding, taking in whatever mass touches its event horizon.
this is what got me.
If a gravitational pull from a black hole, has an escape value of exactly, 670, 614, 600 miles per hour (the speed of light), The light radiation would not be able to escape nor could it fall into the hole. Thus making the light stand still within the event horizon, in an eternal stalemate. A tug of war between light and gravity that can never be won, by the light, nor the blackness. Its beautiful.
What becomes of the material that loses a battle with the event horizon .. is not known. A black holes core is estimated be forever increasing in density, some so incredibly dense that a match box full would weigh billions of tons.
the chances of our sun turning into a black hole is remote, due to its small size in relation to other stars in surrounding galaxies. even in our own galaxy, the milky way, our system fails to measure up to the massive volume of other star systems.
The numbers of the universe are hard, even impossible to imagine. Weve never had to measure things in trillions or quadrillions. nothing on earth is that old or big, and its difficult to imagine the universe going on forever, just as its difficult to imagine the universe being 14 billion light years across.
just so you know, a light year, the distance light travels in one year, is about .. 6 trillion miles. Weve seen, about 14 billion light years into outer space. And everything we see is behind us, as light doesnt become visible to us until in some cases .. millions of years, as it races towards us at 6 trillion miles a year. The suns light takes 8 minutes to get to earth. As it races past us .. in the next year .. todays sunshine will be 6 trillion miles way .. and in 14 billion light years .. will be visible from stars on the far side of universe. The far away planets with life will be looking at us today .. just as we are looking at them .. 14 billion years ago.
Keep looking up everyone.