Spellbound By the Speculation of Such Suction!

May 7, 2012 at 9:43 PM (astronomy topics, curious research, current news, extraterrestrial studies, late night studies, science and technology)


I was watching television, when I got caught on The Science Channel.  I have seen a lot of these programs already, yet I like watching them for the information.  This particular program is an episode is Seeing Black Holes, which has been on several times before.

The topic of a black hole is very intriguing, to me.  Out of all of the wonders of the known universe, black holes seem to be some of the most interesting objects that are being studied.  The information surrounding them rejuvenates my intrigue in studying the more intricate details of astronomy.

There are several black holes that have been identified, though it is not known as to how many actually exist.  Astonomers are suspecting that there are billions of black holes throughout the known universe.  Currently, they are divided into for different catagories.  There are intermediate-mass black holes, micro black holes, stellar mass black holes, and supermassive black holes.

These celestial objects form from the deaths of stars.  Yet, only stars that are three times the mass of The Sun, or larger, can collapse at their end stages to become black holes.  After points of supernovae, these stars fall inward upon themselves, being compacted by the forces of their own gravity.  The resulting object is a point where a vacuous space surrounds a single point, a spacetime singularity, where the gravitational force is so intense that nothing, not even light, can escape.

The core of the collapsed star reduces to an area defined as The Schwarzchild Radius.  Depending on the size of the star, this core exists within three different types of known black holes.  Primordial black holes allegedly are the smallest, supposedly being no more massive than  three times that of The Sun, at most.  Apparently, they started to exist at the the beginning of the known universe, shortly after The Big Bang.  Scientists currently are making efforts to locate these types of black holes.

Stellar mass black holes are the next largest.  These form from the collapses of stars that are at least three times the mass of our Sun.  After going supernova, or after exuding a gamma ray burst, the remnants of these massive stars form black holes.  Currently, some reports are saying that there is no concrete evidence of this level of black hole, as they have not been observed, directly.  Yet, it is postulated that these black holes exist because of speculations of why stellar orbits exist in fashions where stars should be situated within binary star systems, yet only one star actually is observed where gravitational forces seem to dictate that there should be two stars!

Supermassive black holes are the most obvious types of black holes.  These are enormous and vacuous regions of space.  It is basically understood that these black holes exist within the centers of galaxies.  Their masses are equivalent from that of thousands of masses of The Sun to billions of masses of The Sun!  Our Milky Way, and likely all galaxies, have supermassive black holes at their cores.  The supermassive black hole at the center of our galaxy has been labeled as Sagittarius A*.

An edge, or a sphere, surrounds a black hole.  This is the event horizon, the point where anything that gets too close to the black hole no longer has the ability to escape it’s gravitiational pull.  Nothing can be seen, nothing can be detected beyond the point of event horizon of a black hole!

SEE THESE SITES!!!

http://www.scholastic.com/teachers/article/black-holes

http://imagine.gsfc.nasa.gov/docs/science/know_l2/black_holes.html

http://hubblesite.org/explore_astronomy/black_holes

http://science.nasa.gov/astrophysics/focus-areas/black-holes

http://science.howstuffworks.com/…/black-hole2.htm

http://answers.yahoo.com/question/index?qid=20111222140423AAl5Wof

http://www.britannica.com/EBchecked/topic/197134/event-horizon

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