"The fourth planet from the Sun Its unique color makes it distinctive, is noticeably red. It has a thin atmosphere composed (by volume) by about 95% carbon dioxide, 2.7% nitrogen, 1.6% argon, 0.1% oxygen, or 1% carbon monoxide and trace amounts of variables water vapor. The atmospheric pressure at the surface is about 6 mbar. Surface temperatures can vary between 0 and -125 C °, with an average of -50 º. It is relatively common the presence of white clouds of condensed water vapor or carbon dioxide, particularly in polar latitudes.
There are two ice caps at the poles permanent water, which never melt. In winter they increase in size by becoming caps of frozen carbon dioxide to reach 60 degrees longitude.
(...) If there is life on Mars, however simple it may be, there may be variations on a theme as very different. All of a sudden double the number of types of life immediately known and perhaps would acquire a basic understanding of the nature of life. And even if life on Mars is to be based on the same topic on Earth, might have interesting differences in detail. For example, all protein molecules of the Earth are made of amino acids, which (except one) admitted, or a right orientation or left orientation. In any circumstances in which life is not involved, the two types are equally stable and exist in equal amounts.
land in proteins, however, all amino acids, with rare and insignificant exceptions, are left orientation. This allows the construction of perfect cell protein, which would be impossible if some were left and other rights (though the batteries would be perfect if they were all right).
So, why not left and right itself? Is it a matter of pure chance? Could it be that the first outbreak of life on earth turned out to be left? ¿O es que hay en la Naturaleza alguna simetría básica que hace inevitable la forma izquierda? La vida marciana podría contestar a estas preguntas y otras parecidas.
Aun si la vida marciana resultara ser igual y exacta que la vida en la Tierra y fuese idéntica en todos sus detalles, valdría la pena saberlo. Pues ese hecho podría ser una interesante prueba de que el tema de la vida, tal como existe en la Tierra, quizá sea el único posible en cualquier otro planeta, siquiera remotamente parecido a la Tierra.
Además, aunque la vida en Marte fuese un calco de la vida terrestre desde el punto de vista bioquímico, cabría aún la posibilidad de que aquella estuviese constituida for primitive molecular systems which have developed over billions of years here on Earth with his most prolific and gentle environment. Mars would then be a laboratory where we could observe the protov such as (perhaps) existed in the primitive ages of the Earth. We could even experiment with it-which could only do here if we had a time machine, and look for certain fundamental truths that are hidden in the complexities of life on earth.
Another possibility is the existence of organic molecules on Mars they are, now, on his way to life, so to speak, and we could document what happened here for life to emerge and so the paths for it.
Anything we can learn about life on Mars could be like a dazzling light torch that lit corners of our minds those who are in the most intense blackness due to the vast ignorance about the origins of life still endure.
Moreover, many of you have heard the story that the Earth was colonized by meteor came from Mars and that in them spores came later life, proliferated on our planet.
At this point, I have no choice but to remind ALH-84001, the meteorite the size of a grapefruit from Mars that caused a huge debate in our science class when discussing the biology of Mars.
The match that ignited the conflagration was ignited by David McKay, a geologist who worked on refining one of the departments that NASA is in Houston. Together with other colleagues in the JSC and Stanford University, McKay had told the media the discovery of traces of life on a small piece of rock called AL-84001. At least that was the version of history that gave NASA (always looking for headlines).
course, speculation is already giving way to the exploration, and any day in the not too distant future, we will wake up in the morning and to my surprise (expected), we read the headlines, FOUND LIFE OUTSIDE THE EARTH.
many times have we wondered: Is there life on Mars?
not really know yet. And maybe we will not know until the day when scientists amarticen there, personally, I can investigate. It is not easy for a spacecraft, however sophisticated they may be, enter the planet's subsurface to verify certain points.
But judging from what we know today, it seems most likely that there is some kind of life on Mars. Yes, it is true that so far no mission has confirmed that. However, the absence of evidence is not at all evidence of absence ... of life. You just have to look in the right place at the required conditions.
We know and leave it clear that the Martian atmosphere is very rarefied, is a hundred times less dense than Earth, and what little there is almost all carbon dioxide. Moreover, Mars is far from the Sun and a half more than the Earth, so that at night the figures reach Antarctic temperatures and in polar regions cold enough to freeze carbon dioxide.
The man could not survive in this environment without special protection from the cost of which today would be better not to talk. Possible Mars colonists would have to live in domes or in underground caverns. But does that mean that Mars can not be complex life forms adapted to the conditions of this planet? Well, to eliminate this possibility, it would be highly desirable and so far, the better to leave the question floating in the air.
What, for example, simple life forms, plants such as lichens and bacteria-like organisms (a few days ago we saw here what they can do these microscopic bugs and under what conditions they can live). Here the possibilities are now much better and the percentage of likely rises visibly.
I refuse to lose hope of finding some day, some kind of life on this planet, its history and its past, would one day flourish in the same way that occurred here on Earth and, as life, after appearing refuses to die and is by all means to adapt to conditions and had to go on Mars and, those most metabolically prepared for it, they will be there, hoping that we will discover.
you bet anyone a coffee?
Valles Marineris: The Grand Canyon of Mars. It is the largest canyon in the Solar System
cutting a wide swath across the surface of Mars.
Named Valles Marineris (Mariner Valley),
the magnificent valley extends for more than 3 000 km long, covers both
as 600 miles wide, and has dug up 8 km deep.
Emilio Silvera ( http://observatorio.info/mas-de-14-anos-5000-fotos/ )
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