What will Aliens Look Like?
Aliens may Resemble the Human Race or they May Look Completely Different

What will Aliens Look Like?
Aliens may Resemble the Human Race or they May Look Completely Different

Many 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?

Science 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.

Other subjects, 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.

Respected 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.

From underground 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 than proof.

A less direct argument for the existence of extraterrestrial life relies on the vast size of the observable Universe.

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. 

Alien 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.

But 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, California.

Aliens are largely described as resembling human beings.

Take for example the reports of the descriptions of what the "Greys" looks like.

Greys are typically depicted as grey-skinned diminutive humanoid beings that possess reduced forms of or outright lack human organs and anatomical components.

Their 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.

They 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 no
strils or mouths.

Even though Greys are not described as being exactly the same as a human, they often have many of the same characteristics of humans.

Almost all 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.

Certain 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.

Therefore 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.