For many hundreds of years, since the dawn of his reasoning abilities, man has asked: “What is life?” That question is considered to be answered, life is the ability to reproduce, a set of molecules with possibility of making copies of itself and independent of the original copy is necessary and sufficient to be considered property to be alive. On planet Earth those molecules are DNA and RNA, and at some level universe, if we let our imaginations go, there will be plenty of better structures and worse, many with less evolutionary capacity than ours, and others with incomparably better possibilities than our nucleic acids.
We, then, the inhabitants of this planet fear a future attack by others from space? There are two reasons that make this attack highly unlikely, first is the distance in the solar system, because there are no other civilizations near Earth, and the nearest star, Alpha Centauri, is 4.3 light years away. A civilization that came from outside the solar system would have such an advanced technology, that nothing of this planet could interest them, for they could manufacture all a civilization needs to be able to bridge those distances, and would have no problem in electronic transmutation. They could make all they need, and we could possibly be of interest in a mere act of curiosity, which would be limited.
Egocentrically we ask: “Would that alien civilization help us?” If they were to take a broad view a little about this problem on this planet they would find a variety of species, and one of them, man, is not only occupying all ecosystems. It is killing out and massacring the others, sometimes with unusual sadism, because if these aliens decide to intervene on the planet, it might be that they would help dolphins, whales, or any species that man is killing mercilessly.
So the aforementioned extraterrestrial intervention is highly unlikely, and what would happen to us with much greater likelihood is the impact of a meteorite, as those that have already taken place throughout the history of this planet. We also know that asteroid Apophis will not impact Earth, but there are a large number of them wandering through space and that in the future could match the Earth’s orbit and in the same way that wiped out the dinosaurs, mammals could end on this planet, man included. If that were to happen, one could foresee it in advance, but we don’t have a technology to deflect them and there is nothing we could do to prevent the end of humans.
That would be the end of mankind, but not be a problem for the planet, since the sun will have enough heat for millions of years for other species. Things would significantly change over time and if instead of mammals, mollusks evolved, the planet would be completely indifferent, like 63 million years ago when a meteorite fell in the Yucatan and the large reptiles were replaced by emerging mammals.
But if none of this happened, and we did not destroy ourselves as humans, our technology would allow us to leave the planet and launch into the conquest of space. The first steps would be within the solar system, but Mercury and Venus are too hot and inhospitable, whereas Jupiter and Saturn, with their low temperature and total area of liquid hydrogen, they would in principle not allow any type of settlement, and we can only consider Mars, the red planet. Mars would be the only possibility within the solar system, as well, and when the sun starts to turn to helium, significantly increasing its size, the temperatures of Mars would increase, creating a much more benign climate for humans.
But Mars has a number of problems for colonization, in principle, because its low mass does not allow it to have a significant atmosphere. Without this the presence of liquid water is also very limited, and terrestrial beings used to living with a pressurized atmosphere cannot move freely to exploit the planet’s surface. Another problem arises from the fact that Mars has never melted, and thus has no moving iron core, and consequently has no magnetosphere. Without it the cosmic rays from the sun can make life impossible on its surface, but all these problems can be solved technically and would not be an impediment for future colonization.
Going outside the solar system greatly complicate things, and there are lots of stars in all directions, but 4.3 light years to reach the nearest star, so we are alone. Alone in the distance, but the trips outside the solar system are not traveling to come back, they are items of no return, to be forgotten forever from our planet and from the other ships that also left the planet into the unknown. But the greatness of the man is in communication, human knowledge is invaluable as a whole, each brain contains only a small part, so there are physicists, mathematicians, biologists etc. that make the union of all the potential of the knowledge of man.
It is clear that in these ships to the stars they should take as many details as possible, therefore, and that many individuals should be part of the crew of these ships of no return. Thousands? No, just a few hundred would be enough crew, and the general human computer knowledge would be responsible, primarily the humans should know how to access the data and knowledge.
Of course for all this come true, science would have made giant strides. Energy, as far from the stars it would be provided by nuclear reactions, and a modified metabolism without waste, so the problem of old age would be solved. As a result there would be no death, and it would occur only in case of accident. Neither the food nor the oxygen would be a problem because of electronic transmutation, since any atom or molecule would manufacturable. Even with a rotating vessel, the centrifugal force would produce in its astronauts the feel and effects of a gravitational field, and could be fully automated so ships could leisurely reach any stars and their planets for colonization.
Humans are used to living in days full of light, with green forests, clouds, birds, and lots of noise under a blue sky, and darkness in our nights. Adorned with a moon reflecting a dim light, thus giving the environment the inviting atmosphere of a meditation room, and the temperature, both day and night, varies to some degree, but always bearable. However, all this in space is rare, and this happens because we are on a planet near a star with an atmosphere.
But what about out in interstellar space? What would these future astronauts see in the surrounding space? The situation would not be very promising, to leave the Earth’s atmosphere, and with so many stars it would be very difficult to distinguish the patterns of constellations on a totally black background, as the blue sky is exclusive of oxygen in the atmosphere of our planet. The sun would be a great crisp disc on a dark background and the light is not reflected anywhere. The part of the ship that would be toward the sun would be dangerously irradiated by the solar wind, laden with highly destructive radioactive particles, and the temperature would rise too. On the side of the ship opposite from the sun the heat lost by radiation quickly lowers the temperature to less than 150 ° C, so to avoid that the ship should be continuously rotating on itself.
As they would move away from the sun, it would become more and more small, and they as they reach Pluto, the sun does not distinguish itself more than any other star. The black sky would still be full of stars, but at a seriously low temperature, and very close to absolute zero, i.e. at least -273 ° C, and within this scenario abandon solar system. As we maneuver within the Milky Way, our galaxy, we would be surrounded by countless stars. What would happen if the ship left our galaxy to the Andromeda galaxy, which is the nearest galaxy to ours? Then we would be in intergalactic space, which is normal in the universe, at least 273 ° C temperature and almost total darkness.
But is this science fiction or a real physical possibility? If man is not destroyed, technique and science are advancing exponentially, and are not very far from achieving self-sufficient immortal ships, and through genetic manipulation biologically excelling and improving over time. We could well conclude that God did not create the universe, but that the universe is a factory to create Gods, that is immortal and omnipotent beings
And all this takes so long? There are two possibilities that science is not yet certainty which of the two is true, but both would mean the end of everything; if the matter of neutrinos is enough for the universe to collapse on itself leading to a new Big Bang, everything, absolutely everything, stars, planets civilizations and immortal beings wandering through space, everything would be completely destroyed and forgotten, but if the universe expands and cools, reaching the thermal homogeneity of absolute zero, ie under 273 ° C, as these beings have consumed the energy of their ships, their possible existence will come to an end.
It’s a shame, I think I were born too soon.
All I saw seems like a film, but it’s not, it’s just a preview of what awaits us when we can colonize space. Christopher Columbus, with investment from a Spanish queen, discovered America, and now some investments by several countries are helping mankind colonize the universe. Today we are nationalists in the country where we were born or live, but tomorrow we will be only Earthlings in this very great universe. The importance of investment by governments in these discovery expeditions to the universe, and the technology to try to get further and as important as it was at the time of the Great Navigations. Besides the US and Russia, the European Union, China, Japan, India, companies private and even Brazil are involved in running the space race. Who wins this race: all of us. I as a citizen of the world I thank you all who work in it and for it.
I had the opportunity to visit the Kennedy Space Center in Florida and see the latest launch that occurred on 07-28-2015. The launch was unmanned, and it was only to send food, oxygen, other supplies, and science experiments to the International Space Station. The International Space Station (ISS) is the most modern facility made by man in space. It is an ultra modern laboratory in space that began construction in 1998 and was completed only on June 8, 2011. Its orbit is low, about 350 km, and you can catch sight of it from Earth with the naked eye. The station travels at a speed 27,700 km/h and averages 16 full orbits per day.
The ISS is the human presence in space and is a collaboration of various space programs of the leading space agencies in the world. Its main objective is to create an environment to conduct experiments that might be useful for human advancement, both in space and on Earth. The main areas of research are: biology, physics, material science, and astronomy.
About my personal experience.
NASA’s communications department select people to go to Kennedy Space Center as social media correspondents. If you are interested in participating watch when NASA publishes the social media event announcements (http://www.nasa.gov/connect/social/). I don’t know what the criteria they used to choose people, but there were people who had no ties social media, and were there only because they wanted to see the launch. If you are selected you must bear all costs connected with the event, including hotel, flights, and food.
You should be aware of a bus that takes you to the Kennedy Space Center. If you miss the bus you cannot participate in the activities of the day. (Buses are for those who are not US residents and those who do not lead). The social media event does not have Internet service and they do not have a refrigerator to store food or water. They sometimes have food you can buy, but you mostly have to bring your own food. You have to take all your things with you on tours, and this means food too.
The heat is very high and it is very humid, and you have to go completely covered, they do not accept sleeveless shirts or shorts. It’s a whole day standing or walking, otherwise it is interesting to walk around and see the the structure of NASA. I do not know much about technology, what I use is very superficial, but do not expect to enter a control room with the latest technology. NASA looks more like the films of the 1970’s with old computers. They show you what is done all the materials to create the space ships is and that is very interesting and was the part I liked the most. I hope to continue working to make space our next place to live, that our governments invest more in science and technology, and that the astronauts can get off the planet every time safely, and that in the very near future normal people such as I can see our planet from an orbit.
More pictures and vídeos : http://www.styleoflife.us/2015/07/06/nasa-in-photos/
Article by : Angelica Ferrer