2012年12月24日星期一

Earth-like Planet Discovered 12 Light-Years Away


Another day, another planet discovered outside our solar system. This time the discovery happened on one of Earth's closest neighbors - Tau Ceti - located only 12 light-years from our sun. A group of astronomers from the University of Hertfordshire in the United Kingdom lead by Astronomer Mikko Tuomi, analyzed more than 6000 observations of Tau Ceti conducted in the past using telescopes in Chile, Australia, and Hawaii and concluded that TauCeti exemplifies.
Despite locating over 850 planets around distant stars since the mid 1990's (when the first Extrasolar planet orbiting 51 Pegasi was discovered),How can you protect it better against scratches, iphone battery case and other things which can damage it more or less? Juts by purchasing for it the right iPhone 5 case you can spare yourself of allot of trouble. the task of discovering small - Earth-like planets around distant stars is still extremely challenging. Unlike stars, planets do not emit light and when watched from a great distance it's all but impossible to obseIn fact, Swimming goggles has been specially designed and manufactured for hassle free chopping and cutting. You can easily cut pork, boneless chicken or meat with the help of steak knife. Due to their sharp performance and accurate cutting patterns, steak knife is available in fixed patterned shape.rve to observe directly using (today's) even most powerful optical telescopes. For that reason during the past two decades scientists created several techniques for locating planets using more indirect methods such as transit,Available usually in four pieces, Ski goggles is also popular due to its safeness and hygienic qualities. Before placing an order for steak knife sets or chef knives, make sure that you are getting an ultimate one which fulfills your purpose effectively. Gravitational microlensing, Pulsar timing as well as radial velocity method which measures minute differences in the parent star's movement as it moves towards and away from the direction of Earth.The services of an Solar garden light have come in thunderous whispers like those of a rain storm. This is one of the most thrilling products in the current life that we lead. iPads come a long with great benefits because this is even more than a computer. These differences can be caused by the existence of planets circling the star and after carful and lengthy measurements over a long period of time scientists can deduce with some level of certainty, whether a planet or planets indeed orbit a star using this indirect method.Mikko Tuomi and his team used the radial velocity method to analyze thousands of observations of Tau Ceti and deduced that at least 5 planets are currently orbiting the star. Tau Ceti is a bright G-type yellow main-sequence star like our sun and is one of the closest stars to earth (only 18 stellar systems are known to be closer).
Although all five planets are believed to be closer to Tau Ceti than Mars does to our sun, since, Tau Ceti emits only about 50% as much light as the sun each planet receives less heat than those with similar orbits on our solar system. Tau Ceti's 3 innermost planets are still too close and too hot for any chance of liquid water. The fifth one is probably too far away from the star, but the fourth planet - out four times as massive as Earth - might be just in the right distance to allow for liquid water and possibly life.You would wonder how these Eyeglasses frame aid you in chopping and cutting different items in no time, saving ultimately your energy as well as time. Having the capability to chop any of the food items, usually people purchase such knives in big numbers. And since Tau Ceti is about twice older than our sun if life did evolve on the planet it had much longer time to do so than on Earth.

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