|What will Aliens Look Like?
Aliens may Resemble the Human Race or they May Look Completely Different
scientists agree that we are not alone in the universe, but what will
aliens look like?
Will they resemble a typical humanoid or will they
look completely foreign to us that we would not recognize them as life?
fiction has often depicted extraterrestrial life with humanoid and/or
reptilian forms. Aliens have often been depicted as having light green
or grey skin, with a large head, as well as four limbs.
such as felines and insects, etc., have also occurred in fictional
representations of aliens.
While many exobiologists do stress that the enormously heterogeneous
nature of life on Earth foregrounds an even greater variety in outer
space, others point out that convergent evolution may dictate
substantial similarities between Earth and extraterrestrial life.
scientists from NASA and around the world have unveiled startling new
evidence that strongly suggests we are not alone.
Some believe we are likely to discover life somewhere in the universe within the next 50 years.
ocean on a planetary moon, to the discovery of distant planets, to a
detailed imagining of what contact will be like, this programme takes a
serious, scientific look at the question: How will we meet ET? Find out
in Hunt for Aliens.
Various claims have been made
for evidence of extraterrestrial life, such as those listed in a 2006
New Scientist article, which the magazine describes as "hints" rather
A less direct argument for the
existence of extraterrestrial life relies on the vast size of the
According to this argument, endorsed by scientists
such as Carl Sagan and Stephen Hawking, it would be improbable for life
not to exist somewhere other than Earth and its spacecrafts.
One possibility is that life
has emerged independently at many places throughout the Universe.
Another possibility is panspermia or exogenesis, in which life would
have spread between habitable planets.
These two hypotheses are not
necessarily mutually exclusive.
Suggested locations at which
life might have developed, or which might continue to host life today,
include the planets Venus and Mars; moons of Jupiter, such as Europa;
moons of Saturn, such as Titan and Enceladus; and extrasolar planets,
such as Gliese 581 c, g and d, recently discovered to be near Earth mass
and apparently located in their star's habitable zone, with the
potential to have liquid water.
life is not just possible but probable, according to many scientists.
And thanks to new technology, we may not be too far from finding it. For
now, scientists can only speculate what alien life may look like.
many seem to agree: It is virtually a statistical certainty that we are
not alone in our galaxy.
"The more we learn, the more life-friendly the
universe seems," said Seth Shostak, a senior astronomer at the SETI
(Search for Extraterrestrial Intelligence) Institute in Mountain View,
are largely described as resembling human beings.
Take for example the
reports of the descriptions of what the "Greys" looks like.
are typically depicted as grey-skinned diminutive humanoid beings that
possess reduced forms of or outright lack human organs and anatomical
bodies are usually depicted as being elongated, having a small chest,
and lacking in muscular definition and visible skeletal structure. Their legs are shorter and jointed differently than one would expect in a human.
Their limbs are often depicted
as proportionally different than a human's; their humerus and thighs
are the same lengths as their forearms and shins, respectively. They have been depicted as
having three to five fingers and lacking opposable thumbs. Greys are
depicted as having unusually large heads in proportion to their bodies.
They are depicted as having no hair anywhere
on the body, including the face, and no noticeable outer ears or noses,
but only small openings or orifices for ears and nostrils.
are depicted as having very small mouths, and very large, opaque black
eyes with no discernible iris or pupil. Sometimes Greys are alternately
depicted as having no noticeable nostrils or mouths.
though Greys are not described as being exactly the same as a human,
they often have many of the same characteristics of humans.
reports of aliens tend to be with one head, one mouth, two ears (or
slits), one nose (or slits), two arms, two legs.
It is possible that there are aliens that would look nothing like us as well.
Some scientists feel
that life elsewhere would not resemble anything like life here since
there would be so many different factors which would attribute to
different looking forms of life such as oxygen levels on their planet,
closeness to the sun, the strength of gravity, etc.
scientists believe that aliens will look nothing like us at all. In
fact, some scientists believe that an alien species will look so
different that we may not even recognize it as life.
an alien species would look so unique that it could be standing
practically in front of your face and you would not even recognize it as
a living creature.
This is possible, but from most encounters and abduction cases it appears that most aliens resemble typical humanoid features.