After
talking about universe, it's origin and the spread of it's matter and it's
constituents, we must talk about it's end, which is still unknown, but
there's three solutions to the problem of the end which will be discussed
later in this section.
This section includes the following topics:
The
dark matter: In
spite of the great development, science still disable to solve the problem
of universe, there’s a part of our universe that we still know very
little about it which called the “Dark matter”, and because it’s
dark we cannot see it, although dark matter should represent 90% of
universe according to the new measurements because the discovered part
doesn’t exceeds 10% of universe, dark matter may be formed of
undiscovered element so that the modern instruments can’t determine it,
also the discovered elements in earth is surely not all the elements in
our huge universe not only does the dark matter explain the lost mass in
universe but also it explain the cohesion of galaxies, so discovering dark
matter is very vital, because every galaxy is less than the mass which it
should be in it, some of the scientists say that it doesn’t emit any
radiation that could be recorded. In physics cold matter is swallow and it
is impossible for a cold matter to be able to connect millions of
galaxies, so the dark matter must be hot to attract galaxies but if it is
hot, whycan’t we record
any radiation, it is a big puzzle, isn’t it?!
Some scientists suggest the presence of new particles in the dark
matter’s consistent and they call it “weakly interactive massive parts
or wimp, but it is still undiscovered another suggestion say that dark
matter is a kind of cosmic strings, like the string of the nuclear acid
DNA (DNA hold genetic characteristics in human’s body), they say that
these cosmic strings connect galaxies with each other, and connect stars
inside the galaxies another theory try to explain the great connection
between galaxies which is white holes theory and it say that every galaxy
have a white hole in its center but it can’t be seen like black holes
because it doesn’t emit radiations and it density is limitless so that
it can swallow light itself, and every white hole provide its galaxy with
enough matter to keep its balance.
The
three theories about the end of universe: Universe,
inspite of its greatness is like every thing must have an end and the
general relativity assured that, but the end is still unclear, because the
end here mean the death of every body in universe from subatomic particles
to huge galaxies the end when all lows stop, and there are three theories
of suggestion to the end of universe. The 1st suggestion:
we knew that universe is still expended by the effect of titanic explosion
according to the inflation theory but to when?, is this expending is
endless or our universe will shrink again?, if the force of gravity is
weaker than the force of the expending of universe, this mean that
galaxies will be far away from each other and stars will be far away from
each other in every galaxies so the density of universe will be very
small, then nuclear fuel will be consumed, and the temperature will be 0oK or –273.16 Co then in such an extreme climate, the
electron will be freezed and will not rotate around the atom and the end
will be a big chill. The 2nd suggestion: if the gravity could stop the expansion
of universe, and attract galaxies all galaxies will be collected in one
place and universe will end by a big church, where universe become an
enormous mass of matter it will shrink by the affect of gravity, the 1st
and 2nd ends are both possible and they’re known by
c-boundary. The
3rd suggestion: there’s a 3rd solution to this
problem and it suggest the presence of another universe from the anti
matter, then the end came by the meeting of this universe with us, they
will end together, and the result will be huge amount of alpha rays, to be
able to determine the end of universe, we must know the universe’s
density helps us in determining gravity, if the gravity is very great
universe will end by 2nd suggestion, if it’s less than the
wanted gravity it will end by the 1st solution, and as I told
before, we don’t except 10% of universe mass.