Alexander quiroga C

In the previous post to see how it should be a journey through the worlds of the Solar System, as the current space probes. Now I will go further: how could it be a journey between the stars, or better yet, one galaxy to another?

Above all it should be noted that features such a trip will be vetoed, at least for the next one hundred years (perhaps a thousand or more in the second case, or may not ever reach). But obviously this, and suppose that we acquired the technology (and also a new psychology to deal with them) to them, or better yet, we suppose an alien civilization. What do feel when you look through our bull's eye?

Vastness, emptiness, vertigo, yes. Are the stars closer to us quickly and disappear almost instantaneously? No. At least not if you travel with the technological means at our disposal, but with other more sophisticated forms of transportation, who knows, perhaps the science fiction films do not walk so misleading about how it should be a walk in the Milky Way. It is not helpful to enter into technical details about it, just imagine, so let's take some liberties.

Suppose that part of our planet (as Earth or anything else, no matter). Galactic space is extremely large: we could spend entire lives without traveling ever encounter with a star, they are indeed as tiny flecks of land between a giant ocean. Guided by technology, we could pass through our solar system, go to the interplanetary space, leaving unknown stars appear before our eyes and other never seen before, to escape the galactic plane and have a look at our galaxy from the outside, as we see a other islands of similar stars (such as NGC 1365, shown above).

Can that our galaxy is organized and divided into quadrants, sectors, sites or districts, as imagined by the writers of science fiction? Possibly. What is the policy, no longer a world in a solar system, but of an entire galaxy? How could I achieve a lasting and perpetual peace between the countless planets and civilizations, to be sure, must complete the Cosmos? Will there be a kind of galactic government to preserve stability in space and time?

Can we imagine what would be, moreover, their modes of thought, of existence? Mental systems may have advanced so that their actions have no physical reality to us, or are so subtle that it lacks the ability to detect sensory. Will religions, music, live according to moral rules, or this is excluivo heritage of mankind?

From there, will there be a stellar list of how many stars have planets with life around them and within which there are intelligent beings, as in the short story "stupid Donkeys" by Asimov? Are we about to enter it, we? You have already done, or ever will have the privilege not to respond to standards of "humanity" among us, with our brothers for showing us aggressive, vile and despicable, as could see the eyes of everyday people truly evolved?

Should we imagine they already know about us? Or, conversely, traveling between stars are difficult to perform even for them? Perhaps the physical and mental development can be faster than the technology at a certain limit, beyond which any progress is slow and gradual. Is it feasible, in order, travel between the stars?

I imagine that yes, should be. There were thousands of millions of planets, for sure. In a life has taken root, and it is enough that the evolution has brought them the intelligence and consciousness. It is logical that there are worlds where life evolved, but by the same rule can have a much greater development. And therein, perhaps, some day get the spark of ingenuity required to overcome the barriers of relativity and to make travel between a distant star everyday.

Four hundred years ago a boat trip from Spain to the New World employed several months, today we do in a few hours. Admittedly, we speak of a completely different space-time, and that the impediments of the physical limitations are very important not had the time, but what counts is that in these past centuries contemplábamos travel thousands of miles in a few hours impossible. Why can not we dream that the difficulties we see now for a journey between the stars will be resolved some day?

We need to go there, get in deep contact with the Cosmos. We are doing this on Earth, or venturing out beyond the skin, for some lucky (and wealthy) human, but that is a surface contact. We must penetrate the gap and find out what awaits us there. We need to know the unimaginable, and discover the true face of the universe. Maybe this century, which has already traveled almost a decade, give us the key to achieving this.

A fabulous collection of galaxies wild

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A fabulous collection of galaxies wild
The largest collection of images from the Hubble Space Telescope have been released to the public as a whole: 59 new images of galaxy collisions.

Galactic interactions are found throughout the Universe, sometimes as dramatic collisions that trigger the formation of stars, and other occasions are stealthy mergers that result in new galaxies.
A series of 59 new images of galactic collisions have been released for several terabytes of archive footage of the Hubble Space Telescope as a way to remember the 18th anniversary of the launch of the telescope. It is the largest collection of Hubble images released to the public simultaneously.

You can see in the Image Gallery of mergers of galaxies by Hubble

Mergers of galaxies, which were more common in the early universe that the current is thought to be the main source of cosmic evolution, turning on quasars, frenzied awakening births and explosive stellar deaths of stars. Even apparently isolated galaxies show signs in their internal structure have experienced one or more mergers in their past. Each of the several mergers in this series of images is a shot of a different instant in the long process of interaction.

Our own Milky Way contains the remains of many smaller galaxies it has encountered and devoured in the past and is currently absorbing the dwarf elliptical galaxy Saggitarius. In turn, the Milky Way appears to be part of our giant neighbor, the Andromeda galaxy, resulting in an elliptical galaxy.

The pull of the Moon that produces the upward and downward oceans illustrates the nature of the tide. This force between galaxies is much more harmful for two main reasons. Firstly, stars in galaxies, are together only by force of gravity. Second, because the galaxies can pass much closer to each other, relative to their size, the Earth and Moon. The billions of stars in each galaxy interaction move individually, following the pull of gravity of all the other stars, so the tidal forces can produce the most intricate effects.
An amazing atlas of galactic interactions that produce a remarkable variety of intricate structures