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Life on other planets in our galaxy is!

23 Feb

The fact that we found so many planets the candidates in this tiny part of the sky – our galaxy allows us to provide: in our galaxy there are innumerable planets orbiting solar-type stars, – said the chief scientific investigator of the mission, William Borutski. – We started with the planets, which exceed the size of the Earth up to 68 times, and with 54 candidates who have a “zone of life” and some of them may have a moon and liquid water. ”
System, Kepler-11 “a distance of about 2,000 light years from Earth, is the most densely filled planetary system, which showed so far. All six of the confirmed planets have orbits smaller than Venus, and five out of six have orbits smaller than Mercury.
The only other star with a transiting planets have been confirmed Kepler-9, in which three of them.
“These six planets – a mixture of rocks and gases, including, possibly, water.
Stone materials constitute large mass planets, while natural gas – much of their volume. By measuring the size and weight of the five inner planets, we have determined that they are among the “easiest” confirmed planets outside our solar system, “- said Jack Lisser, an astrophysicist, a member of the scientific team,” Kepler “. And this discovery – just fantastic – unbelievable and with great prospects.
All the planets orbiting system, Kepler-11, are more land, they can only be compared to Uranus and Neptune. The inner planet, Kepler-9, ten times closer to its star than Earth to the Sun. Remote, “Kepler-11g”, and a half times farther from its star than Earth is from the Sun. They have a significant amount of light gas, which indicates that these planets formed within a few million years.
“With each new discovery,” Kepler “fills all of the new historical gaps” – summed up astrophysicist Douglas Gadzhins.
What will they say to this, scientists – astrophysics? With these questions from the “Express” asked Clim Churyumovu, corresponding member of NASU, known astrophysicist, and Alexander Zheleznyak, Candidate of Physical and Mathematical Sciences, Research Fellow, Department of astrometry, stellar and galactic astronomy Institute of Astronomy of Kharkiv National University named after VN. Karazin.
– How can you now see the planet at a distance of two thousand light years from Earth? Apparently, the word “see” the scientists put a special meaning?
K. Churyumov:
– Of course, no one has seen the star system, “Kepler, as we see our own moon. Scientists are guided by these spectral observations, calculations of the radial velocity of stars. This speed is different when a star passes by the planet. This time the stellar eclipse record, analyze, test due to complicated formulas. At this time, thanks to the data of the gravitational influence of planets of the system, Kepler-11, unable to determine the mass of five out of six of these objects.
I should add that most of the planets outside our star system is open not only visually, as the method of complex computer calculations, in theory, an experimental way. There is a whole new trend in astronomy – search for planets outside our solar system. And astronomers have suggested that they are many, but Kepler was able to confirm their guesses.
– When it comes to planets similar to Earth immediately suggest that there may be life, this earth?
K. Churyumov:
– It is assumed, and that the assumptions were as realistic as possible, it is necessary to know the composition of the planet’s atmosphere, its structure (the gas giants do not contain life), the presence of her sources of water, surface temperature, etc. However this does not necessarily have to be a copy of our blue planet: oceans of water and fertile land. Life forms in the universe can be a lot, quite different from those we know. Extreme, according to earthly standards, forms of life are possible on Venus and Mars, albeit it comes to microscopic bacteria, but it is also life.
But the more the parameters of the planet closer to Earth, the greater the chance that live there are our brothers on reason. Or are there prerequisites for this, and it is possible that with time scientists can observe the processes of evolution on the “younger sister of the Earth, the development of life from simple to complex forms. Sci-Fi? Is not fiction not long ago would have seemed like today’s astronomical discoveries?
– The discovery of new planets, NASA scientists must Telescope Kepler 11. What are the advantages of such devices?
A. Zheleznyak:
– Space telescopes – is today a unique tool for studying the universe. Kepler-11 “- relatively small by modern standards, a telescope, it is specifically designed for the complex search space, planets like Earth. This telescope is launched into orbit for nearly two years ago. And all the while he was monitoring the site of the cosmos, which contains the constellation Lyra and Cygnus. By hypothesis, astronomers, it is here that there are a lot of stars like the sun.
Our atmosphere transmits only a certain part of the entire spectrum of electromagnetic radiation coming from outer space objects. Orbiting telescopes like Kepler help expand the boundaries of the possible, explore outer space in the ranges are not accessible for observations from Earth. This, in fact, is the main advantage of space telescopes.
For example, recently a new word in astronomy was regarded as the Hubble telescope. But he is exploring the universe only in the visible wavelength range. And Kepler photometer is equipped with super-sensitive. Through such instruments, scientists expect to get information about young stars, hidden behind clouds of cosmic dust, entire star systems.
– Now, thanks to the mission, Kepler, “in-line at NASA can observe the Sun in a format ZD. As I understood-understood are the processes taking place in the sun, thanks to its three-dimensional picture?
A. Zheleznyak:
– Extremely those scientists are now able to learn about solar activity on the invisible side of the world. NASA telescopes devices do provide data on key aspects of solar activity – flares, emissions of the plasma.
Until recently, scientists who monitor sunspots had no information about the spots that appear on the opposite side of the world. It is now possible with significantly higher accuracy to predict magnetic disturbances on Earth and plan to fly … the universe!

 
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Posted by on February 23, 2011 in Galaxy

 

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