Within our galaxy alone, there are millions upon millions of stars. Within our universe,
there are millions upon millions of galaxies. Humans have known the existance of stars
since they have had eyes. Although interpretations may have differed on what they
were, they were always thought of as white glowing specks in the sky, but the mystery
does not lie within what we can see, but what we can not see. There are billions of
stars lighting the darkness of our universe, but the question lies in what happens when
one of these enormous lamps burns out. Upon many speculations, one of the most
facinating is the black hole theory. Not any star can become a Black Hole. For instance,
the possibility of our sun becoming a black hole is highly unlikely, simply because it is
too small. Only a very large star has the potential to become a black hole.
The definitions of black boles are somewhat sceptical. Generally, a black hole is an area
of super-concentrated mass. So concentrated, that no object can escape its
gravitational pull. In other words, once you get caught by it's graviational pull, you
aren't getting out again. The velocity you need to break away from a graviational pull is
called the "escape velocity". Roughly, earth's escape velocity is about 25,000 M.P.H.
(11.2 kilometers/second). Earth's mass is nothing compared to the mass of a star that
has the potential to become a black hole. A black hole has so much mass in such a
small area, that its escape velocity is greater than the speed of light. So if were all
living on earth, and earth was a black hole, we would need to go at the speed of light
in order to get to the moon (and not to mention a lot of milk so our bones could
support 800 million ton human beings).
Even though a black hole's gravitational pull is enormous, it does have its boundry. This
boundry is called the "event horizon". This event ...