Stars

Stars

Сообщение HainanWel.com(e)! » 20 ноя 2011, 20:45

Astronomers have discovered the spiral arms around star
Thursday, 20 October 2011 09:47

http://hainanwel.com/en/unusual-world/1 ... -star.html

The American astronomer Carol Grady on a conference at the Goddard Space Flight Center reported, that the star SAO 206 462, located 456 light years of Earth, found gas-dust cloud of spiral type, similar to the spiral arms of galaxies. According to preliminary data of scientists, this gas-dust cloud around the star may have arisen because on the orbit of this star located some invisible massive objects. Which ones, yet we can not say, scientists first encountered such an anomaly, perhaps, the pictures from space telescope will answer in the future on this issue.
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Re: Stars

Сообщение HainanWel.com(e)! » 27 сен 2012, 00:41

The magnetic field of a star in the constellation of Perseus can pull all the iron from human blood
Wednesday, 12 September 2012 15:28

http://hainanwel.com/en/unusual-world/1 ... 624-2.html

In an article, which was published in the "Monthly Notices of the Royal Astronomical Society", was reported, that the group of astronomers, led by Gregg Wade of the Royal Military College of Canada in Kingston, reported about detection of the biggest stars of NGC 1624-2 with the strongest magnetic field of any previously studied famous stars - magnetic field of the star NGC 1624-2 in tens of thoUSAnds of times stronger, than the magnetic field of the Sun and it is so strong, that if man found near the star, the magnetic field of the star NGC 1624-2 could pull all of the iron from the blood of this man. According to Gregg Wade, magnetosphere of NGC 1624-2 in 4-5 times wider, than the magnetosphere of other major stars of similar size and in 80-100 times wider of the size of the star. Star NGC 1624-2 is in the star in cluster NGC 1624, which is located in the constellation of Perseus at a distance of 20,000 light-years from Earth. The opening of the star with the most powerful magnetic field was made using the telescopes HETI in American McDonald Observatory, Austin, and the French-Canadian CFHT telescope on Mauna Kea in Hawaii.
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Re: Stars

Сообщение HainanWel.com(e)! » 12 окт 2012, 02:56

Fiery spiral found inside the red giant star- VIDEO
Wednesday, 10 October 2012 22:55


In the Nature magazine, a team led by Mattias Maercker from University of Bonn, Germany announced the opening of an unusual star, a red giant R Sculptoris, in which is located a "fiery spiral" of enormous size. According to Mattias Maercker, for the first time astronomers have seen this kind of spiral, which was formed by the interaction of the solar wind emanating from the red giant. The discovery was made using a telescope observatory ALMA (Atacama Large Millimeter / submillimeter Array) in the study of red giant stars that belong to the asymptotic giant branch of AGB. In the search for AGB-giants astronomers discovered a red giant in the constellation of Sculptor, which is located from the Earth at 1,500 light-years, THE VIDEO: http://hainanwel.com/en/unusual-world/2 ... -star.html
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Re: Stars

Сообщение HainanWel.com(e)! » 23 окт 2012, 00:41

Discovered the first planet in a four-star system- VIDEO
Monday, 15 October 2012 21:01


In the Library at Cornell University was appeared a joint article of amateur astronomers, members of astronomical Internet project Planet Hunters and astronomers from Yale University, USA, about unusual discovery – in first time was discovered planet in the system, which consists of four stars. Planet Hunters project supported by astronomers from Yale University, which confirm or refute the opening of amateur astronomers. The new planet has been found in the system of KIC 4862625, which consists of two pairs of stars that turn around each other at a distance of about 1000 AU. The new planet was named PH1, its radius in 6.18 times more then the radius of the Earth, one rotation around its own pair of stars PH1 planet does for 20 days. Previously, astronomers have discovered about a dozen planets in binary star systems, more about binary systems can be found in this VIDEO: http://hainanwel.com/en/unusual-world/2069-ph1.html
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Re: Stars

Сообщение HainanWel.com(e)! » 11 ноя 2012, 04:21

Astronomers saw an oldest stars in Universe- VIDEO

Friday, 02 November 2012 10:44


In the magazine Science was published an article a group of scientists from the German Synchrotron DESY Center and Stanford University, USA under the direction of Markus Ackermann and (Marco Ajello, which argues, that astronomers, using the gamma-telescope "FERMI", for the first time were able to see traces of light from the first and most ancient stars in the Universe, in the form of the extragalactic background light (EBL). According to the press service of NASA, the stellar radiation in a wide range of radiation continues to travel through the Universe for a long time after the stars have ceased to shine, and that is the light of ancient stars seen Markus Ackermann and Marco Ajello. As reported, Markus Ackermann and Marco Ajello came up with an unusual way to search for traces of the extragalactic background light (EBL) - they studied the spectrum of blazars, which are powerful sources of radiation, while in the spectrum of blazars background radiation should replace a section of gamma radiation, which made it possible to see traces of EBL, THE VIDEO: http://hainanwel.com/en/unusual-world/2 ... verse.html
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Re: Stars

Сообщение HainanWel.com(e)! » 11 ноя 2012, 04:25

Planetary nebula Fleming-1 in the constellation of Centaurus hides a two white dwarfs- VIDEO

Friday, 09 November 2012 18:33


In the Science magazine was published an article of a group of scientists from the European Southern Observatory in Santiago, Chile, under the direction of Henri Boffin, that planetary nebulae appeared as result of the interaction of two white dwarfs, which rotate around of a common center of mass in a very close orbit . According to Henri Boffin, as an example, was considered like a "cocoon" Nebula Fleming-1 in the constellation of Centaurus with VLT telescope in Chile and was found, that such planetary nebulae (glowing clouds of hot gas) may be made of two white dwarfs (small stars), one of which has half of the mass of the Sun and the other star has a mass approximately equal to the mass of the Sun. Both of these white dwarfs rotate around a common center of mass in a very short distance from each other, and the gravitational interaction of these stars leads to the fact, that the hot gas is twisted into a spherical structure similar to the nebula Fleming 1, THE VIDEO: http://hainanwel.com/en/unusual-world/2 ... ing-1.html
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Re: Stars

Сообщение HainanWel.com(e)! » 26 ноя 2012, 00:38

New stars cease to appear in the Universe- VIDEO

Sunday, 11 November 2012 14:45


David Sobral, the astrophysicist from the University of Leiden reported on the website of telescope "Subaru", that the star formation in the Universe has been steadily declining over the last 11 billion years, and at present time the number of new stars in 30 times less, than were a 11 billion years ago, so in the future we should expect only 5% of all the stars of the Universe. Study of David Sobral at Leiden University was published in the Monthly Notices of the Royal Astronomical Society, in conjunction with David Sobral worked an international team of astronomers, which used three telescopes to test his theory: the United Kingdom Infrared Telescope (UK Infrared Telescope), the telescope “Subaru” (Subaru Telescope) and Chilean telescope “Very Large Telescope” (Very Large Telescope). It was found, that half of all the stars of the UUniverse were existed more then 9 billion years ago, and only the other half came later, which gives reason to support the hypothesis of David Sobrel and claim a significant reduction in the rate of formation of new stars. Estimate the size of stars in the Universe may be in this VIDEO: http://hainanwel.com/en/unusual-world/2 ... ppear.html
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Re: Stars

Сообщение HainanWel.com(e)! » 01 дек 2012, 22:33

Cool brown dwarfs may have a planetary systems- VIDEO

Saturday, 01 December 2012 09:44


In the Astrophysical Journal Letters appeared an article of astronomers from the California Institute of Technology in Pasadena, USA, under the guidance of Luca Ricci, that with the help of the radio telescope ALMA (Atacama Large Millimeter/submillimeter Array) was found, that dust disks around brown dwarfs (failed stars) contain a lot of dust particles, which are necessary for the formation of rocky planets, similar to the terrestrial planets. According to Luca Ricci, the discovery was made in the course of monitoring gas and dust disk around a brown dwarf Rho-Oph 102, where it was found a large amounts of dust, as the dust particles of different sizes emit a radio waves of different wavelengths- than large particles of matter, by that greater the wavelength, that it emits in the radio waves. And if the gas and dust disks of most brown dwarfs emit virtually at a wavelength of 3.2 mm, in the case of the brown dwarf Rho-Oph 102, this pattern was not confirmed, as the difference in power of radio waves with a length of 0.89 and 3, 2 mm was significantly lower, than in the study of most of the brown dwarfs, it proves, that a millimeter dust particles exist in the gas-dust cloud around a brown dwarf Rho-Oph 102, which allows the formation from these dust particles a rocky terrestrial planets, THE VIDEO: http://hainanwel.com/en/unusual-world/2 ... anets.html
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Re: Stars

Сообщение HainanWel.com(e)! » 10 дек 2012, 02:23

Binary star system is converted from triple star systems- VIDEO

Sunday, 09 December 2012 18:24


As reported the Nature and Science Now, a team of astronomers from University of Hawaii at Manoa, USA with mathematical modeling showed, that the double star system, such as the closest to the Earth binary star system Alpha Centauri, which are often formed as a result of the evolution of a unstable triple star systems. As know, the Alpha Centauri star system consists of circulating around each other a pair of stars (Proxima Centauri) and a bright star- Alpha Centauri, which are located at a distance of one-fifth of a light-year. As established by the American astronomers, many binary star systems, like Alpha Centauri, in which the stars are located a very far away, formed as a result of the evolution of unstable triple systems in which there is a convergence between the close pair of stars, and the third star is superfluous and discarded by their gravitational interaction of the outer orbit, THE VIDEO: http://hainanwel.com/en/unusual-world/2 ... ystem.html
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Re: Stars

Сообщение HainanWel.com(e)! » 01 июл 2014, 16:00


TOP 10 problems of interstellar travel - VIDEO

The stars above us are so beautiful that people even made whole mythology based on them. They are really spectacular, and now, when we got to the Moon and soon get to Mars, our natural tendency would be the way to the stars. This trip formed the basis of countless science fiction stories and movies. Many already think that travel from star to star easy - you just need to press the trigger, but not so simple. Several serious problems remain to be solved.

faster than light

neutrino

The basis of many space travel in science fiction lies moving faster than light. In reality, the physics preclude such a possibility. And there are no opportunities around this fundamental limitation. Even traveling at close to the speed of light is faced with all sorts of interesting relativistic problems associated with mass and energy. Our only option is to use portals - wormholes. Wormhole must be carefully controlled, that is currently beyond our capacity, and we need to somehow create a second wormhole in the destination. The need to send someone to the end to create a wormhole - not the best reason for the first interstellar travel. Besides the physical effects when traveling through permanent or temporary wormhole can lead to destruction of all matter. You may well get to the destination in the form of plasma.
teleportation

teleportation

Classical teleportation implies a person who activates the device and disappears in order to appear at the destination. But in reality, teleportation works far more complicated than shown in the movies. Even if we admit the possibility of such a principle, think about it: people versed on the atoms in the car for teleportation is physically moved to a destination and going again. Only one assembly requires incredible machines in the destination, and the basic laws of physics will not allow us to accurately manipulate matter at such enormous distances - up to another star. Such teleportation is possible only in those places where we have been. Assembly of atoms is not yet available to us, but it is possible. You just need to send atoms to another star, and this can be done with the speed of light - clearly faster than sending the body, but it would still take years.

Another option - to gather at the end of an exact copy of the person, and the previous destroy. But this option is hardly anyone want.
Colony Ship

ship

If traveling faster than the speed of light is not possible, we can build ships generations. Light reaches our nearest star for four years, but heavy objects take much more time. To most of the stars have to fly at least a hundred years. The ships generations population can be born and die, until many years later, it reaches the destination. But these ships have a number of problems.

Descendants elementary can forget about the original purpose of the mission, because it will turn into a legend for hundreds of years. Reasonable computer system could train people born on the ship, to avoid this failure, but still - very difficult to predict what will happen in the time until the generation replaced by another generation. If anything happens to the ship, barely a generation which has forgotten the subtleties of engineering craft over the years, anything can help.
Mothership

spaceship

To resolve uncertainties in the maximum ships generations can use ships eggs. They will carry frozen fertilized human eggs to be grown and nurtured elaborate machines, and they will perform their uteruses, parents and teachers. Egg can turn into people on reaching a distant star or planet, and the computers will teach future space invaders everything you need to know.

Designing such machines may not be possible at the moment, but in the future - why not? In any case, as the ship generation, ship the eggs will not help the person who wants to go in search of new stars. A cultured people may not like them or they do mission can be born without thirst for travel.
longevity

eternity

Alternative vehicle generations may be genetic modification of people who can live for hundreds or thoUSAnds of years to travel to the course of his life. All questions of life in space would be exhausted. Longevity and immortality carefully studied science, but the biggest obstacle in these matters remain telomeres - the end portions of chromosomes that get shorter each time your cells divide. In the end, telomere length will be eaten at all.

dormancy

anabiosis

Every new generation of longevity and did not answer the important question, can help hibernation. In many movies and books of people detained in a sleep state to deliver on long distance. In this state, people do not age or age very slowly, it is such a kind of "sleep mode." Unfortunately, telomeres and then pose a problem.

Our bodies always contain a small number of radioactive elements. They emit small amounts of radiation, which is harmless to us as new cells replace damaged permanently. If a person does not age during hibernation, its telomeres are not reduced, and the cells do not divide. Any radioactive elements in this state will apply permanent harm to the body that will ultimately lead to death. Even slow aging can deliver radiation for long periods of time. Need to share cells at a normal pace.
motion

burrow

Even if human problems traveling to other stars are resolved, the problem will go. Conventional systems include fuel combustion or reaction mass, but to get to another star, need incredible reserves of fuel, which is extremely inefficient. As a solution - you can gain fuel along the way.
In the space between the stars is no ordinary asteroids or planets on which you can sit down and get fuel. Fortunately, space - this is not a vacuum, it has many scattered tiny atoms, preferably hydrogen. If you move at high speed, these atoms can be collected and used as fuel in fusion reactions like (of course, if we get to it). To collect hydrogen, need a powerful "scoop", according to preliminary estimates of 2000 square kilometers area. This will significantly increase the size of the ship resistance and reduce speed to conventional rocket. Such a system would be extremely inefficient and unsustainable. But she was treated.
damage

constellation

star closest to us - it's Alpha Centauri. She is four light years from Earth. If you get it to a conventional car with a speed of 60 km / h, you will need 72 million years. Even assuming that such a car will be created during this period will expire every imaginable periods of decay and natural wear and tear, not to mention almost zero probability of arrival after such a long time. Speed ​​is needed, even if it is limited by the speed of light. Because of tiny atoms scattered throughout the cosmos, any vessel at high speed will bombard them with such force that they will knock even the strongest steel.

There are two options: the people or machines are constantly patching holes and repairing damage, which means you will need a huge amount of materials for repair, which will carry with them, or a ship is made ​​of elastic material that will fix themselves. These are the materials now being developed in space agencies. The bad news is that scientists do not believe in the possibility of the existence of such materials.
gravitation

gravitation

The structure of our body is heavily dependent on gravity. When people do not live in a normal Earth gravity, their bodies begin to suffer. After a few weeks or months to become brittle bones, muscles - weak and long-term effects generally fatal. People can deal with such effects through a variety of exercises and diets, but after a few years or decades in space, the human body will be irreversibly damaged. Even within a relatively short flights badly deteriorating eyesight. This is the problem, by the way, wants to solve NASA, before sending humans to Mars.

Instead of living in zero gravity, you can create artificial gravity by rotating the space object. Unfortunately, it would take a tremendous amount of energy and fuel, and the rotation itself will inevitably cause nausea - in short periods. What will happen in the long term - is still unknown, has not been studied.
Food, air and water

biosphere

People living on the ship for a long period, you will need a support system. They will need to eat, drink, breathe, urinate, defecate, bathe and sleep. Much of this can already be done in space with current technology. But in the case of long journeys amount of food and water would be too great, so that you can take with you. The most reasonable solution would be to take the ship self-sustaining ecosystem. plants produce air successfully eaten and consume human waste. Any ecosystem rather ineffective, but will extend the life support prior to arrival at destination.

Ship equipment will be seriously damaged gases that will appeal, but this could be solved by creating a smart material. Carefully studied algae as they have great potential in maintaining ecosystems. But they have a problem - if you eat the algae in large quantities, can seriously poisoned. And again - the genetic modification can solve this issue. http://hainanwel.com/en/unusual-world/4 ... ravel.html
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