Ancient Mars was not reddish, it was blue and white

The surface of Mars is about 144.4 million square km, that is about 14 and a half times the surface of the United States or 14 and a half times the surface of China, which is more or less similar, it is almost the same surface as that of all the continents of the Earth, although currently Mars is a gigantic dry and cold desert, but it maintains reserves of frozen water at the poles in some areas underground and a few meters from the surface we also know that there are reserves of water ice. At a deeper depth it is believed that there may be large quantities of water, from the ancient oceans, it may be useful for irrigation, it may be useful for drinking, it may be useful for the uses that humans need, perhaps to create small lakes or lagoons but it will not be useful to create seas or large lakes, because it would end up filtering back into the interior, if it is down there it is because that is where it ended up filtering, it is the same thing that happens on Earth, much of the earth's water is underground, But even if you can remove it, it would end up filtering down again. In any case, there are still enough reserves of water ice on the surface and within reach of human beings.

An investigation takes us to the University of Colorado Boulder, it was published on April 21 and there is another with a few days of separation that one helps the other, one explains the problem that this one has, specifically, this investigation of April 21 is from a new study by geologists from the University of Colorado in Boulder presents an image of the red planet not red, in the past Mars must have been a blue planet due to seas, lakes, rivers and white, because it snowed a lot, it was warmer and more humid but it also snowed in abundance, In fact, the analysis that these geologists did is that these precipitations of both rain and snow were what sculpted numerous valleys and channels, molding the Martian surface billions of years ago. Most current scientists agree that at least water existed on the surface of Mars during the Noahic era, the era is called Noah's because there was water, not because Noah was there, from about 3,700 to 4 million years ago until about 3,700 million years ago there was abundant water, then there continued to be water, but it was lost little by little. According to these Colorado researchers, the origin of water has been a mystery for a long time. The problem was how Mars was warm enough to have water on the surface, since at that time, billions of years ago, the sun shone less intensely, it only had 75% of its current brightness. I remind you that the sun gradually increases its brightness, each time it sends more radiation, more heat to its planets, in fact, there will come a time in about 1 million years where the Earth will receive such an amount of the sun that it will begin a global warming process, temperatures will rise. and the oceans will end up evaporating and water vapor is a very powerful greenhouse gas with which we will end up turning the Earth into a new Venus.

Within 1 billion years we humans will no longer be there and if there is a species, it will be a species that has evolved from humans, who knows where we will be as humanity, this evolution is going little by little, but in the past billions of years ago the sun emitted less heat, less radiation, therefore, Mars in theory should have been even colder than today. The team of researchers had this question: how is it possible that Mars had enough heat to have snowfall, rain, rivers, etc., this team of researchers used computer simulations to explain how those geological features that they had found could have been formed and all the models they had made reached the same conclusion and that is that the fault had been the snow or rain precipitation that had formed those valley patterns. The landscape that was painted thanks to these models and those equations was a landscape of quite warm Mars around the Equator, but with areas with a large amount of snow and ice around the poles and at lower latitudes than is normal now, Mars has poles with ice, although almost all the ice at the poles, especially in the south, is frozen CO2, but there is also water ice, but back then the poles were much larger. According to these models, according to these researchers, what happened at that time is that depending on the seasons, the ice melted and created large rivers that flowed into the lakes and seas of Mars, but they cannot explain how the Mars of that time was hot enough to maintain this entire cycle of rain and snowfall, of a landscape with rivers and seas, and keep this cycle constant.

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