One of the many reasons put forward as to why we are being visited is that it is just a simple case of curiosity. In a similar way as the first explorers of our planet discovered new lands and new civilisations (e.g. the Incas, Mayans and Indians), alien lifeforms who stumble across us in their exploration of space may find us an intriguing and interesting species in our own right. This would tend to explain why there has been so many sightings of various types of craft. Alien races, once they had learned of our existence, would want to come and observe us in a similar way that other civilisations on Earth were observed. However, this simple curiosity theory does not explain some of the more 'disturbing' aspects of Alien encounters such as abduction experiments and mutilations. This problem can however be catered for by the fact that we are probably being visited by more than one race of alien civilisation, each having their own agenda. Also, once an alien civilisation had discovered us maybe various groups within that civilisation started visiting us. A group of alien scientists would obviously have a different agenda to a group of alien 'tourists' or even alien 'joyriders'.
Another popular theory put forward is that the Earth may well contain certain minerals
which are not
present on the alien planet. There has been some evidence of this in various reports and
claims of
'underground' alien bases and sightings of craft seemingly taking samples of earth, planet
and even
other lifeforms.
However I feel that this is probably the weakest of all the theories as surely we would
notice any
great reduction in any of our more common minerals. However it may be the case that
the aliens only
require very sample amounts of a particular substance for their purposes.
One strong theme to of emerged from many of the abduction and contactee tales is one
kindness and
protection. Many abduction victims claim to have been shown mental images of the
destruction of
Earth through neglect and war. These images have been remarkably similar across a
broad spectrum
of abduction victims each basically confirming the same images of death and destruction.
The early contactee claims of the 1950's also had a similar theme to them. Many
contactees claim to
have been shown similar mental 'films' and to of been warned that if the people of earth
do not
change their ways then the earth will slowly destroy itself.
At first many of these claims seem strange if not absurd, however it must be remembered
that the
modern UFO era occurred very shortly after the first atomic bombs had been detonated
around the
mid 1940. Now this may or may not be 'proof' but it is certainly then a strange
coincidence.
Another fact worth remembering is that several of the famous sighting cases have
occurred around
nuclear installations, (Roswell was the worlds first nuclear bomber Air Force Base), and
seems to
indicate that the aliens are demonstrating that they could if desired 'take-out' the nuclear
arsenal of
both East and West.
One of the more recent theories is that the aliens are using the human race to conduct
some form of
genetic experiment. This has come about fairly recently due to the connection between
animal
mutilations and UFO's.
Many abduction victims claim that they were subjected to strange experiments including
the removal
of semen from men and eggs from women. Some women even claim that they have been
impregnated only to have the foetus removed shortly after conception.
Various reasons have been put forward for these experiments. They range from the
theory that the
alien civilisation is dying and needs our genetic material to continue to survive to the fact
that they a
crossbreeding humans and aliens to make a new race. Indeed several abduction victims
claim to of
encountered strange 'human-like' children whilst on board the alien craft.
Another theory for this genetic experiment is that the aliens are changing themselves so
that they can
live on earth. The alien lifeforms as they stand might not be able to survive on our planet
for to long
due to atmosphere differences and our diseases.
This theory certainly seems very plausible when you take into account the abduction
stories, animal
mutilations and experiments. Several of the early contactees also claim that the aliens
'were adapting
themselves' so that they could 'coexist' with humans.
The last theory that I will put forward for now is that of the 'invasion' theory. Now this
theory was put
together by early contactee claims. However, over the years the theory has become less
widely
accepted.
The main reasoning against this theory is that any civilisation that can traverse space and
time should
be able to invade a civilisation that has been flying for less that 100 years. Also if the
invasion theory
is correct then surely we would have been invaded many years ago and I would not be
writing this.
Supporters of the invasion have recently started using the Genetic theory to explain why
have not yet
been invaded. They claim that the aliens can not exist as they are at present without some
genetic
modification, and hence the abduction, mutilation and experiments.
This could be plausible but again with all the abduction cases there has been very little
'evil' intent
from the aliens. Only in one or two cases has any invasion overtones been mentioned.