El mayor descubrimiento sobre el cometa 67P/Churyumov-Gerasimenko

El mayor descubrimiento sobre el cometa 67P 

La sonda Rosetta ha detectado una gran cantidad de oxígeno alrededor del cometa 67P/Churyumov-Gerasimenko, un hallazgo que pone en jaque los modelos de formación del sistema solar y puede afectar el modo en que se busca vida en otros planetas, según publica hoy la revista Nature.

fuente: https://www.youtube.com/watch?v=5ottTuo7naI

The universe in which we live is a simulation on a supercomputer?

Although it seems science fiction, a group of physicists at the University of Washington has now succeeded in designing a test to prove if indeed we live in simulated on a computer universe.

The idea that humanity could be living inside an artificial universe came in an article by Nick Bostrom, a professor of Philosophy at the University of Oxford. The work was published in 2003 in the journal Philosophical Quarterly and since then has not left anyone indifferent.

A group of physicists from the University of Washington are developing a test that could take place in the near future and could help to resolve the question of whether or not actually live inside a computer simulation. 

To do Professor Martin Savage considers it necessary to model only a small part of our world, ie also create a sufficiently large simulation.

Starting from the basic laws of physics that govern the universe have been able to simulate relative success tiny portions thereof on a scale of a billionth of a meter, slightly higher than an atomic nucleus.

"If you get a simulation big enough it would emerge much like our universe," Savage says. Therefore, according to the scientist, it's just a matter of looking at the universe we live in an analog "signature" that they are using in our small-scale simulations.

Something also to Savage and his colleagues, is perfectly feasible. In fact, they suggest that the "signature" that would prove that ours is an artificial universe could appear as a limitation on the power of cosmic rays (the radiation reaching us from distant stars and galaxies).

According to the idea of ​​Savage, the highest-energy cosmic rays could not travel on the edges of the artificial grid that simulates space-time in a hypothetical computer model, but should travel diagonally, so that their interactions would not be equal in all directions, as expected. If it can be shown that such "unnatural" limitation exists, there would be no question that we live within a simulation.

source(in spanish):http://actualidad.rt.com/

Discover the brightest galaxy in the cosmos

Imagine what it would be three hundred billion (10 ^ 12) suns. If you look directly to our central star can blind us forever, the thought of a brilliant mass of this caliber is unimaginable. Well that's WISE J224607.57-052635.0. It is not the friendliest in the world name, but it is the brightest galaxy ever seen by mankind in our universe. And it has been recently discovered by the space telescope WISE, which has cataloged this and other giants like within a new category called ELIRGs or extremely bright infrared galaxies. These are the most luminous galaxies in the known space. And of them, this is the queen of all.

Photo: NASA

This is the brightest galaxy

The brightest galaxy in the universe is very, very far from here. We've detected only through the issuance of its infrared light. And the data, the researchers believe is a mass mammoth with a monstrous black hole at its center. So very huge and colossal revolves around a disk of matter heated plasma composed of billions of degrees. The amount of energy emitted such an object is simply indescribable. High energy jets consist of X-rays, visible light and ultraviolet. But if so, should not we see the visible light? At the end of the day, it is the brightest galaxy in the universe, observe how the galaxy was made 12.5 million añoses a galaxy right? Well, the visible light actually strikes the dust clouds around, warming.It is these that transmit infrared light outside. And it is thanks to that that WISE has detected the galaxy. WISE telescope carries the universe in infrared observing only since 2010. Since then discovered for the first time ELIRGs, galaxies hitherto never observed and are characterized by extremely bright. According to calculations, the light has traveled about 12.5 billion years to reach us, so we're seeing a galaxy of long ago. Yet even then this galaxy had a black hole equivalent to billions of solar masses about our sun and has since gone ten million years. Now simply it has to be tremendous.

ELIRGs and evolution of the universe

How can black holes become so huge? There are several hypotheses about which are the subject of study in this research and other partners. First, it could be that his "seed" was exceptionally large. That is, that the black hole from which embryonic were already huge. Much more than was thought until now. The other two explanations, as discussed from NASA involve breaking or forcing some laws on the limits of black holes. Specifically, it is explaining the Eddington limit which is the maximum size that should be able to reach a black hole feeding on surrounding matter. This limit, explained, "The ELIRGs are among the objects discovered more recently" has been overcome in other specific occasions. But achieving such a size required to "break the limit" several times.

On the other hand, the black hole could be feeding material much faster than expected (and what they thought could happen), forcing its growth limit. In any case, astrophysicists are fascinated with the implications this has on the cosmic evolution of galaxies. The ELIRGs are very new galactic objects, still not well understood and that keep many mysteries. Mysteries universally, that is. Understanding how it appears, how they develop and how they will end you can tell us much of our universe. So far, only they have been discovered about 20 ELIRGs, including the brightest galaxy is cosmos. But we have only begun to explore this aspect of the sky. There are still many surprises waiting in between the huge black holes and galaxies brighter.

Source(in spanish):http://hipertextual.com

Scientist Michio Kaku surprised with finding irrefutable evidence: God does exist

The American physicist and science writer, one of the most respected in the field of quantum physics luminaries, ensures that there is an unknown force that governs everything.

image: http://www.flickr.com/people/34458623@N03

The renowned American theoretical physicist Michio Kaku, famous for making the revolutionary string theory (fundamental physics model that assumes that seemingly specific material particles are actually "vibrational states") recently caused a small tremor in the community then scientist who claimed to have found evidence of the existence of an intelligent man unknown force that governs nature that is, something quite similar to the concept that many have of God as creator and director of the universe entity.



In reaching this conclusion Michio Kaku used a new technology created in 2005 that allowed him to analyze the behavior of matter at the subatomic scale, relying on a "primitive semi-tachyon radio." Tachyons, of course, are all those hypothetical particles able to move at superluminal speeds, ie, are theoretical particles able to "take off" the matter of the universe or the vacuum contact with it, thus leaving the matter in its purest form, totally free from the influences of the world around them.



According to the physical, observing the behavior of these tachyons in several experiments, concluded that humans lived in a kind of "Matrix", ie, a world governed by laws and principles conceived by a kind of great smart architect . "I have concluded that we are in a world made by rules created by an intelligence, not unlike a favorite computer game, but of course, more complex and unthinkable," said the scientist.

Michio Kaku added, "analyzing the behavior of matter at the subatomic scale, hit by the pitch radius semi tachyon for the first time in history, a tiny point in space, totally free of any influence of the universe, matter, force, or law, is perceived in an unprecedented way absolute chaos. So, what we call chance no longer makes more sense, because we are in a universe governed by established rules and hazards not determined by universal plane. This means that, in all probability, there is an unknown force that governs everything, "said the scientist".

Michio Kaku added, "Someone did Einstein once the big question: Is there a God? And Einstein replied that, first, to be a scientist you have to specify well what is understood as God. If you understand God as a figure that is prayed, a figure that gives and takes part, then the answer is no. But he believed in a God represented by the order, harmony, beauty, simplicity and elegance, the God of Spinoza. The universe could be chaotic and ugly, but instead is beautiful, simple and governed by simple mathematical rules.

more info (in spanish):http://www.guioteca.com/fenomenos-paranormales