states the principle of mediocrity that our position in the universe and its events are mediocre and ordinary, and that we adopt for this reason should not, that we any of which may be privileged, or that the universe was created with the intention to produce beings like us or something. Edwin Hubble showed
that our Milky Way, which contains our sun, including more than 100 billion stars, just a tiny point of light in the universe was.
If it is not something special if not miraculous to the Solar System and Earth has to if it is not something completely unusual act, then what has happened here, have occurred frequently in the history of the universe.
habitable planets are rare or common in the universe?
There are two sides of the medal: on the one hand we have the star rating, attempts, so to speak, on the other are the factors. It takes a lot of factors to a habitable planet and solar system produce.
These necessary for the habitability of the earth factors were the focus of profound investigation.
The laws of physics and chemistry prevail in any laboratory on Earth apply everywhere in the solar system in the galaxy, and in many cases even in the most nearby galaxies we can see.
There exist in fact, immutable laws of physics in the universe are related to the entire universe and are not confined to one area. The
are, as for complex life on Earth necessary factors are the parameters in the search for other habitable planets in the universe.
serious dialogue about those factors begins with a requirements: liquid water. The chemical properties of water are ideal for life based on carbon.
These features include the ability of water to dissolve the chemical nutrients necessary for living organisms and transport, as well as his unmatched ability to absorb solar heat, a vital step in the regulation of surface temperature.
In its liquid form water an extraordinary substance. the distance of a planet from its sun, and its existence depends on another factor from which is essential for complex life.
It's like they say in real estate: "Location is everything."
Habitable planets are in what we call the habitable zone. - Not too hot, not too cold but just right, and I mean just right for water.
A key feature of a habitable zone is liquid water. Is it too hot, the water evaporates, it is too cold on Mars, it freezes.
The habitable zone in our solar system is relatively narrow. It begins outside the orbit of Venus and ends just before the orbit of Mars. Would be clear that Earth is only 5% closer to the sun, they would fall victim of the same fate as Venus: one out of control runaway greenhouse effect with a temperature of almost 500 ° Celsius. JURISDICTION
the earth on the other 20% further away from the sun, would be carbon dioxide clouds in their external Atmosphere form that would cause the cycle of ice and cold, the Mars makes sterile.
Liquid water is a prerequisite for life, but not the only necessary one. Finally, there could be water under the frozen surface of Mars, or Jupiter's moon Europa by. But the probability that complex life exists there is extremely low. The recipe is much more complicated than complex life, "add water."
produced deep within the earth the rotation of molten iron, a protective magnetic field, which is another prerequisite for complex life. If our planet smaller, weaker magnetic field would be, which would mean that the solar wind would carry away our atmosphere and the Earth into a lifeless, barren world like that would turn on Mars.
lights from outer space viewed from the Earth's atmosphere as a thin blue band of light is less than one percent of the diameter of the earth is. It consists of a mixture of nitrogen, oxygen and carbon dioxide. The result is an atmosphere that assures us a temperate climate and protection from the sun's rays, and the correct combination of gases which are necessary for the existence of liquid water and complex life.
for a planet like the Earth is our moon in size. Our current knowledge says that without the moon there would be no us.
With a fifth of the size of the Earth, the pull of the moon, the inclination of the Earth's axis keeps stable at 23.5 °. Thus our relatively moderate seasonal changes are saved, and the only climate in our solar system that is mild enough to ensure the existence of complex living organisms.
If we find life out there, and especially complex, intelligent life, then it is in the neighborhood of a star similar to our Sun.
If the sun were smaller, like 90% of the stars in our galaxy would be the habitable zone smaller. Order made within its borders to stay, the Earth would have to find closer to its sun. There, the greater attraction in the earth's rotation would enable synchronization with its orbit. While one side of Earth facing the sun would be constant, and thus would be exposed to increased radiation from solar flares and the other half would be below a mantle of constant freezing cold. It is unlikely that complex life forms could tolerate such a drastic temperature differences.
ran a whole series of things right on earth to produce complex life forms can.
The number of necessary factors that have been set up, has grown. Currently there are around the 20th
We have found that we need the right location in the galaxy, within the habitable zone of a solar system and within a planetary system with planets that are large enough to the inner planets to shield too many external effects in the orbit of a star is not too cold or too hot, and on a planet of a moon has the angle, the Earth's axis stable, a planet which has a crust that is thick enough to support plate tectonic activity, which is hot enough to cycle through the rotation of its core to produce liquid iron, a magnetic field, with an atmosphere that contains enough oxygen to complex organisms can survive, and enough water and enough continents for a variety of ways of life or an active biosphere we need to support complex life forms like ourselves. All these factors must be simultaneously satisfied at a point in the galaxy if we want a planet that is as habitable as Earth, is required for complex or even technological life.
In the experiment, the probability of the simultaneous arrival of these factors to calculate, some researchers have set up equations in which each was awarded for complex life necessary factor in a generous probability factor of 1:10.
If any requirement for same time must be met, one must multiply the probability factors together, and therefore the end result is so small: we have 10% of them and 10% of it, and there is one fast at a very low probability. This number has to compare us with the number of stars. 100 billion is a very large number, but one thousandth of a trillionth of reducing the likelihood immense.
What do these probability calculations us is that something usually does not happen or that it is very unlikely that it occurs in the galaxy. And the direction is in the lead at the results.
There are many potential resources in the galaxy, but on the other side there are all the necessary factors, all of which must be just right to obtain only a habitable planet. And that brings me to the conclusion that we are somewhat rare in the galaxy. allow
The environmental conditions of a planet the complex creatures like humans, Pfanz and animals are rare indeed. The Earth is a pretty special place.
Though relatively primitive life forms like microbes may often occur in the universe, are planets with advanced life forms is extremely rare.
Our entire universe is about life rather voted hostile. If we all known areas of the universe, comparing, the earth is incomparable.
We live in a very special environment that provides us with everything we need: air, food, a stable condition ... The earth is like one giant organism synthesis in which all systems work together in such a way to survive it allows the animal world.
We have won the cosmic lottery. Our planet has been lucky. We are at a very privileged place.
If the Earth has existed for a particular purpose, there is a way to find out that?
The sun is 400x larger than the moon, as well as being 400 times so far ...
So we have an event that people notice for centuries, but write off as coincidence.
The phenomenon of total solar eclipse was the tip of the iceberg, so to speak, the first of a series of documents which enable us to judge whether the universe is the result of a quirk of fate or a random process, or an intended result of a scheme or plan .
A full solar eclipse is a wondrous event, as it allows us to measure the quality of the upper layers of the solar atmosphere.
fit during a solar eclipse of the moon over the sun so perfectly that it shields her glare and thus astronomers a look at the atmosphere of the sun gives, which is otherwise impossible to catch. While the point of totality, the pink shimmering arc of the chromosphere, the innermost layer of the atmosphere, visible, and with it a rainbow-like band, called the Flash-range when you look at the sun through a prism.
The darkness of 1870 led to an insight into the structure of the solar chromosphere and the discovery of helium, the second most abundant element in the universe.
The spectrum is probably the most productive source of information about the sun that we have.
And it was during a number of historical eclipses that astronomers found out how the solar spectrum is produced. And they find it only in a position to determine the circumstances were generated during a solar eclipse. You need a fairly accurate adaptation of the moon to the sun, so that the chromosphere is visible, and these insights to us by the eclipses of the 19th Century, granted, allowed astronomers to find out finally how the spectra are produced by distant stars and called therefore the astrophysics to life. It allowed us to understand how to operate other stars, since they are even further removed us from the sun.
On May 29, 1919, a team of scientists photographed under the direction of the British astronomer Arthur Eddington, the sun and its nearby stars in the Hyades star clusters during the point of the totality of a solar eclipse. Subsequent analysis of the photographs confirmed that the gravity of the sun light away stars that are located towards the Earth moving bent in the corner of Albert Einstein had predicted. Einstein's relativity theory revolutionized our understanding of the universe had been confirmed during a solar eclipse.
This experiment was only possible because these stars are visible only during a solar eclipse. These are milestones in the history of science. And watch the best place in the solar system from which one a solar eclipse may be, the land surface. I
the circumstances of eclipses on other planets and moons of 65 was calculated, and it is true that the place where there are also observers, the best of eclipses is. Was this only applies
a stray act of nature or a view of a fundamental principle and the whole scheme of the universe? can
What if the factors that make a planet habitable, the planet while making a place where you make the best scientific discoveries? What if the positions in space that are compatible with viewers such as ourselves, at the same time have the most suitable position for observation?
The same fortunate circumstance that we owe our existence, we also provide the best conditions for making scientific discoveries.
It takes a certain mixture of elements of a complex biosphere as to support our own, not just any atmosphere.
Within the family of the sun from 70 planets and moons, the Earth is one of seven bodies, enveloped in a thick layer of gas. However, of these 7, only the Earth harboring complex life, and only the earth's atmosphere is transparent.
If you encounter the conditions for habitability and scientific discovery in the same places, then replaced circumstances as they prevail on Earth: An atmosphere that supports complex life forms like us, while allowing scientific discoveries of the universe around us.
On their journey through the universe, the earth is bombarded by cosmic radiation away from the sun and other celestial bodies, shooting supernovas in galaxies is secreted. It reaches our planet at wavelengths known as radio waves, microwaves, infrared light, ultraviolet, X-rays and gamma rays, and together they form the electromagnetic spectrum.
Almost all of these wavelengths are invisible to the naked eye and either harmful or useless for organic life. And it turns out to be within this range of frequencies, a tiny amount of radiation as essential for plants, animals and humans.
In other words, only a small portion of the electromagnetic spectrum is used for life processes such as photosynthesis. It's not as if life could have evolved that it would use gamma or X-rays. It turns out that the same small portion of the spectrum is necessary for life, while the most influential is the proportion of the various structures in the universe we observe around us.
These specific frequencies, which enables plants to Produce food and astronomers to explore the cosmos, represent less than a trillionth of a trillionth of the electromagnetic spectrum secretions of the universe. Fortunately, this is the kind of light from the sun produces abundant, while our most easily breaks through the filtering shield of our atmosphere to return to the earth's surface.
it something you would not wait on luck produce something. optimized
Just like our position in the solar system for life, it also applies to our situation in the galaxy.
While a black hole, exploding stars, and deadly radiation in the vicinity of complex life the galactic center would make almost impossible to present the outer part of the Galaxy further challenges to the search for habitable regions.
There is probably not enough heavy elements would be necessary for the formation of planets the size of the earth to support life.
So there is a happy medium between the dangerous center of the galaxy and its outer regions. There are definitely areas within the galaxy in which there could be no civilizations because they are too dangerous or have not enough heavy elements.
Even within the habitable zone of the galaxy are the dangerous Spiral arms, which take place in undSternbildungen most supernovas.
a desirable position would be outside of the spiral arms, in the ideal region of the galaxy.
And it seems as if it is just where is the earth.
location is everything, and we find ourselves in that special place in the galaxy in the optimum conditions prevail for habitability, threats are minimized and we have enough bricks in a soil.
Moreover, there is the earth in the most appropriate location for astronomical observations of our galaxy.
are located on the surface we are really in the best position to both the nearby structure of the Milchstaße observed, and the distant universe as a whole.
holds no such thing as gravity, matter, there would be no planets, no stars and no complex organisms. Without the strong interaction there would be nothing that holds together protons and neutrons in a nucleus, and thus there would be no atoms, and hence no chemistry. Without the electromagnetic interaction of chemicals would not be bound and there was no light.
All these fundamental principles must be met to sustain life. If we break even one of these Gestze, there is no life.
scientists have the relative values of each of these fundamental forces and physical Laws calculated.
These values are so critical, saying that they could be calibrated to detail at and adjusted.
You imagine a machine which is able to regulate each of the values of the physical values. If you can deviate in any of the values of these fundamental forces like gravity to a tiny amount of its current setting would be the impact on the complex life would be catastrophic.
These fundamental forces and constants are another example of the relation between life and discovery.
Not only are they set to's finest for our existence, but they can also be understood.
It is amazing not just how well these laws work, but also how simple they are.
This also refers to the status of these laws to be discovered.
Albert Einstein wrote: I firmly believe that the principles of the universe will be both breathtakingly beautiful and simple.
Many of the most important theories in theoretical physics can be written on a single sheet of paper, and that should give one to think that such simple formulas and equations apply to such a complex and immense universe.
We not only have a universe that's down to detail has been attuned to life, but of the same time a beautiful and elegant methematische structure has a structure which is the bargain can still see from us.
It seems as if whatever was the creator of the universe always intended it that it monitors in the discoveries he would be able to make.
Copernicus, Kepler, Galileo and Newton himself believed that the universe is the product of a mind and that it was natural for beings like us is itself, because the universe itself was the product of an intelligent being.
They revealed the hand work of God and how the world works. What a thought: that they actually can get a glimpse into the nature of God and find out how He created the universe. There is a hidden Subtext in creation that can be explained by this process we call science.
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