Now alas I'm far from acquainted with "UFO" life, but I have come to conjure several idle theories of which may hold to some a more illusive image and depict fraud from reality. So as many possibly have seen a show or so pertaining to people that have seen, assumed, etc. about a UFO there are many descriptions which have come into play of which science can state in opposition. For example there have been some descriptions about the anatomy of the sighted UFO and generally consist of the same components, small, wrinkled pale skin, large eyes, and usually large heads that distort any means of porpotion. In addition there have been many supposed sightings about the crafts in of which they fly, but in truth there are many issues with the comparison and logic on these sightings, as I shall example by using the "Australian Triangular UFO".
Now the possibilities of it actually being triangular are of a slim and utmost impossibility as the laws of gravital and civil aerodynamic laws can not apply of which alas have to be taken into account as these crafts have been supposedly subjected to entered the Earth's atmosphere and henseforth have the weighens of our planetary gravital pull. So this gives a basis of the logic, as we must now take into the gravity laws and civil science of the present and apply it seeing as now we have a much larger basis of variables, but there is one explicit variable of which can't be ignored in this equation, and that is the factor of air resistance. Regardless of the material, etc. all objects within the earth's atmosphere are subjected to the same unique properties, so exceptions of ethereal material can be ruled out. Yet of all possibilities why would they build a triangular/pyramid type craft, and how would the laws of gravity and civil science apply? Well the question is of a complex nature, but the reality is that in new age engineering many objects of our own are losing their corners due to one structural flaw, corners. This flaw is due it's pressure endurance of which a mass with corners falls feudal to. So alas even with a pin-point marvel a tringular or pyramid type structure is still submit to these standards. Now assuming that these crafts could move at the speed of light the consequencial resolution of pressure along the exterior of the craft would simply cause it to self combust or to henseforth subjected to micro-fractures/cracks in the best case scenario. Yet the one variable of which can't be defined in the endurance of the material, yet still there is only one material known by man that could withstand, in best circumstances, such a high velocital pressure, but even this would fall fatal to micro-cracks by the structure of the spotted craft. So alas now applying the laws of pressure we may now see the flaw into this whole equation with the "Australian Triangular UFO" sighting. It is that it is by these micro cracks and the properties of the immense pressure being applied to the craft as it were to move at the rumored speed of light, that would cause the micro-cracks at the corners of the craft to shift, engorge, and henseforth destroy the craft at such a fast rate due to the immensity of the pressure being applied, and the resoluting factor of the implosion the craft as it no longer could maintain an stable airlock and with the exterior of the craft crumbling the pressure being applied would subject to both interal damages to circuitry, etc. as well the molecular structure of the craft of which would henseforth cause a resistance so great that it would send the craft into spinning frenzy of which would then leave the faces of the walls subject to the pressure and without the resistance support of a stable airlock the material would henseforth break seeing as the pressure can't be distributed throughout the mass of the object do it's one flaw, corners.
Yet this may disprove one but it also leads to the possibility of the other more commonly critiqued circular dome crafts of by both civil and gravital law would be a more apparent and possible design as long as this craft is not subjected to the same fatality of having corners. So the possibility of this is more real that it could appear but even the laws of physics would challenge the endurance of even this craft, but because this is the idle design the chances of defiance to the law are strong as long as the variable of the craft's material remains undefined.

Though this leads up to the next matter of which will disprove most physical sightings of these 2nd world party. Now this is where the laws of gravity and evolution play an exclusive role in the anatomy of these beings and henseforth all beings throughout similiar galaxies. So if we choose to add another strength to our controversy we can add in the illogical theory of atomic comparison between beings. Yet even though this will play it's role in the explaination it still is an illogical and faulty method. So alas for those of whom are unfamiliar with the asteriod belt and the planetary orbit, the following may seem confusing as in the whole granduere of matters this in itself is a confusing matter to most. Now many people throughout time since the invention of telescopes scientists have typically wondered why and if all planets are round, and even some who wondered why the asteroids never had jagged but smooth characteristics yet possessed they may possess gapping holes that tarnished through their molecular structure. Yet alas it has only been theorized with many relapsing failures, but in this instance I shall present a new logical theory.
Now as many can see throughout our galaxy all the planets, and Saturns moons are spherical, but why? The answer is the gravitional pull as courtesy of the sun and individual planetary orbits. Now instantly you will ask why aren't Saturn's moons spherical, and why isn't Pluto *by subjectory opinions*? This is due to a sandwich effect in reference to Saturn's moons as they are located between two of the largest masses in our solar system. Now in comparison it is true that Saturn is several times smaller than the sun, but alas it due to it's mass the resoluting gravital pull exerted with the rotary motion of planet causes the moons to orbit Saturn. Yet alas since there is one but larger mass in the solar system, the sun, the gravital pull from each mass in essence overlap the other causing an unseen friction inbetween the two masses and distortion to the orbital pull of the recessive mass, Saturn. So now refering back to the minor orbiting masses of Saturn we must take into account this new variable, but alas as we can refer from the conjointing of any two masses we can logically fore-tell/see that any matter inbetween the friction zone and the minor exteriors will be affected by the collition. Alas this brings us to a complication of which the moons of Saturn orbit around it, for the moons now being subjected to this pressure at specific lapsing equations of which this smaller mass is henseforth pinned inbetween by the force being exerted by Saturn and the force exerting from the sun. Yet if the planets were of equal mass the moon/mass would break, but alas Saturn is of a smaller size and it is at this point that the moon begin to be subjected to the pre-liminary consequences of the sandwich effect.
Now in the first stages the moon traditionally will be pressured by the sun's exerting forced and be forced to orbit Saturn in an irregular orbit. It is henseforth due to this irregular orbit that the planet is then pushed further into the Saturn's lunar orbit until it is henseforth confronted by Saturn's exerting force of which then causes the moon to be locked into a constrained orbit and where two apparent faces, *the present face towards the sun, and that of Saturn*, are then compressed and due to it's circular structure the pressure it distributed throughout the mass of the moon, yet alas seeing as there two competitory factors all the pressure coast along the lines of the other and result in the pressure being distributed to the opposite polls of the moon, compressing the walls on either end and henseforth causing the apparent north and south polls of the moon to extend as it releases the pressure. Yet this step also has a more subtile factor, for as the compression on the opposite exterior faces of the moon as it rotates are being compressed, the force also causes the faces of the planet to smooth and dome over as the pressure exerts along the surface of the planet as it continues int it's rotary orbit around Saturn. Though as the moon exits to this cosmic equator and obtains momentary relief from the sun's direct force as it travels along the sides of Saturn. It is then that the sun's force acts are a projectory, and pushes the planet outward without an opposing gravital force and the opposite face, and then with the additional recognition of Saturn's gravital pull it then re-obtains it's planetary orbit as the moon travels behind Saturn. Yet it is in this instance that mistakes can occure. For if another moon may intercept a paralell rotary as it rounds the back of Saturn, it may weaken the extent of Saturn's orbital pull and henseforth cause a planet to either lose momentum or possibly, in a worse case scenario, collide or drift out of the orbital bonds of Saturn. Yet if another moon were to be an the same projectory path then there would be the possibility of collision or the loss/gain of momentum.
So this only can partially explain why Pluto and the asteroids are the way they are, and I shall explain why. For as you see if a planet were to enter on a neighboring paralell path with another planet in our solar system then the exerted force of the sun would hensforth be weakened and cause an irregular orbit depending on the interscepting planet's mass, velocity, interscepting planet's distance from the sun, affilicted planet's mass, velocity, and distance away from the sun. Now as was explained in the scenario of Saturn's moons the same event can occure if those six variables are met in a specific range, but with a more catastrophic result. So alas this in itself explains the mystery of Pluto's irregularities in comparison with the other planets, within the original nine.
Next we enter into the domain of the asteroid mystery of which is a much different scenario in most aspects. In comparison with Pluto's conditions the asteroids have yet a wider variable plane, for now not only shall there be a worry of intersecting pathways or collisions, but alas now we must take into the account it's distance from the sun as it is a linked variable to the heat factor of which is henseforth applied as the asteroids orbit past and around the sun.
Now in general asteroids are condensed dust from other planetary explosions, and potentially gas reminants. So traditionally for any pyrotechnics, the basic conclusion with extreme heat of earth/dust, as exampled in volcanoe incidents, it will turn into a heated liquid mass of something we currently only categorize as magma or lava. Now if we were to apply pressure to the ground in this weakened state it would take little to no effort at all to simply change the form, and this is the same event that occures in space as an asteroid rotates around sun dependancy on it's location from the sun and pre-ceding variables. Yet in this case the sun not only heats the asteroids, but also it exerts gas while all the mean while it may strech, conjoin, seperate, and in general morph by the dependance on certain variables as it travels around the sun. So alas it is during this time that the liquid form can potentially receive gases, and slowly as the asteriod leaves the orbit around the sun, the asteriod begins to cool and the condensed magma/lava begins to expand as it cools and it is by this state that we see some of asteriods with several holes or a swiss cheese like appearance, for it is due to that when the maga/lava expands the gas bubbles that may have been trapped now funnel their way to the closest apparent surface, boring holes in the rock as they do so. Then finally as the asteroid now once more retains it's a solid form, it is then subjected to the gravitational pull of the asteriod belt, and both of the apparent faces of which are hense rounded and smoothed over periods of time as either face is subjected to motion resistance. In addition abnomalities may occure such as a collition that may chip, send an asteriod tumbling, speed/cripple movementum, or event launch an asteriod dependancy on the force of collision to break through the gravital pull of the asteriod belt and send it hurtling through space and henseforth case potentially dangerous results.
So alas this also explains that there is the potential of non-spherical planets, but but the impossibility of triagular or deformed geometric shape unless the planet was either young, or another afflicting variable as exampled in the Saturn moon scenario could cause the conditions to change.

Now finally you may be asking how this at all relates to the anatomy of a 2nd universal race, and if you may recall what I stated in the explaination about Saturn's moons, that the orbital pressure combs along the exterior of the moon and rounds it, then you can foretell where this in general shall lead. For it is by this reasoning that it would be physically impossible for there to be any being in space that should happen to have a triangular or henseforth any ends/corners to their anatomy as it would be physically impossible to withstand the pounds of force due to gravity, etc. as exampled on any planet. Yet that is also not as far as this goes for it is depicted that these sightings were of small nature which in general would give us an insight into what terms they live under. For as depicted by our own exampled gravity here on Earth due to the size of the planet also depicts what can live on it and what size of beings live on it. Now by comparision the only possible way to be anatomically correct is to compare what factors that we know as a definite affect our and our neighboring planets. So alas we are left with a trend of where things would be generally smaller on larger planets so then seeing as we must assume that a variation of our law of gravity exists upon every planetary plan, then it must be that this 2nd universal race must come from a larger planet as there is only factual evidence to depict the relative coorelation between the two. Yet there may be other factors such as heredity that may apply to the size or specific living conditions that may prove this trend to be off, but we can conclude that any results that may become apparent should being along the general guidelines. So now there is some insight into how they look and it also narrows down the possibilities of where they live, so alas this in itself has disproven many theories but one much greater than all, the Mars theory.
Next is to find out why they would have pale skin, and there are only two apparent reasons of which I shall show you that only one is frankly possible. These two possibilities are natural race hereditarial attributes, but the only is the lack of sunlight. So we must now take into consideration these two factors, but although both are possible there is one flaw, and that is the planet size of which they thrive. Now as I exampled in the scenario of Saturn's moon the same conditions apply in the sense of gravital pull and exerted force. For it has been both recorded and seen that two large masses can not be located within a certain distance of the other dependancy on the the size of either mass, for if else the two planets will get intrude on the other's revolving orbit and cause the two to circle around and henseforth collide and explode as exampled by this small video clip courtesy of N.A.S.A.:

http://www.nasa.gov/vision/universe/watcht...hort_burst.html

So alas this also means that the planet can't be close to the relative Sun, and this would explain why they are pale yet only a fraction of it because it may also be due to hereditiaral origin yet without pigmentation as received via the relative sun it would pertain to be of a higher probability. So once again thousands of possibilities could be eliminated due to these two factors, and this in itself would present an even higher sense of their home.
Now there are two other things that we can now further explore in their anatomy which would be both their eyes and henseforth their living conditions. Though as you can already foretell they can't have square, triangle, etc. type eyes due to their current anatomy, so alas this can paint a more indepth picture of their appearance. Next we must look on if their eyes are huge and potentially what colors they are, and this can be answered to an extent. Yet first we must find out on if they have enormous heads as many reports say they do, but alas this is also disproven. In correlation with all of our previous information we can state that the head size can't be enormous in comparison on in the body as there would be several issues with this anatomical image. This conclusion is based off of general body function, and seeing as all these sightings happen to be within our atmosphere and particularly upon our land, a sense of anatomic similiarities seeing as they can survive under the similiar conditions as enstated here on Earth. So this would draw us to a conclusion that they must have a blood line, and a bone structure or else in contradiction the weight of gravity would henseforth cripple or possibly kill these beings. Now they must have along the same body structure as ourselves but on a much smaller scale, so alas we must conclude that their heads must be particularly perportional and not of an engrossed size as many currently believe. So alas now since we have a facial boundry we can now take into account of perportionals, and environemnt and now both have become apparent. So now comparing the fact that their planet must be seemingly dark as exampled by their pale skin we must take into account the method of substitution. Now in this case we have dark probably Earth arctic type conditions on their planet so we must conclude that their bodies must pertain to a higher fat count then ours, and since it is dark it would seem that there wouldn't be a use for eyes for sight, but more or less hearing, touch, and smell, yet there is the possibility of nocturnal eye sight. So if we were to take into account that they possibly can have nocturnal eye sight then their eyes would be blind in light, so we have another contradiction in this case. Supposable sightings say that they always see a white light, and they see a lighted craft yet this would contradict the possibility of nocturnal eye sight so we are one again left with one solution, day vision. Now we have an eye tone we can out rule the heightened senses of hearing, smell, etc. and take into account exactly how this can be applied to depict the anatomy. So another problem we are here to come across is how exactly their eyes work, how they depict light would determine what colors they see, and on the size of their eyes as well as the color of them, though we can start to tackle each possibilities as there is a correlation with eye size and light & dark contrast. Now we have another trend where eye size is relevant to the ability of light and dark constrast, so since we've seen the incidents and have depicted their living conditions we can now go on to figure exactly exactly how big the eye size is. So since larger eyes is relavent to complications with light and dark constrast and smaller is normal, we can rule out that they have large eyes and instead reason their eyes are perportional. Now all that is left is to depict eye color, though since they live in a dark domain we can conclude on saying that they have a more pale color tone since hereditiarial issues are another factor of which can't be strickly determined as it is impossible to stereotype one definition to compare with thousands.
So now the possibilities have narrowed down to such an extent that a general idea far past what was previously imagined has been defined by logical reasoning and science.