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PremiumVIVAnews -after more than 30 years of leaving Earth, two twin NASA Voyager satellite now have arrived at the end of the solar system. The two main satellite mission has actually ended in 1980 and 1989 and, now ready to enter the space between the stars (interstellar space).
"Extraordinary," said Ed Stone, Voyager Project Scientist from the California Institute of Technology which has been monitoring the Voyager mission since 1972, as quoted from Cosmosmagazine, may 2, 2011. "During this time, Voyager 1 and 2 are always making new discoveries. Any findings change the way our point of view of another world, "he said.
A number of findings that revealed by the Voyager is the discovery of volcanoes on Io and the evidence of the ocean under the ice surface of the moon Europa (both belonging to the planet Jupiter) of methane rain on Titan (Moon of Saturn), the strange property of magnetic pole of Uranus and Neptune, a fountain containing ice on Triton, a moon of Neptune, as well as the wind planetary blowing more toned when the planet away from the Sun.
No one knows for sure how distances that must be pursued Voyager to arrive in interstellar space. But some researchers believe that the ends of the solar system was near.
"The thickness of the heliosheath (the area in the heliosphere in position after point termination shock where the wind speed dropped to below the speed of sound) is estimated at 4.8 to 6.5 million miles," said Stone. "This means that Voyager will be out of the solar system in 5 years into the future," he said.
Fortunately, there are still enough energy to travel. Both Voyager still getting supplies power from radioactive decay heat of Plutonium 238. "Battery" is estimated to be enough to provide energy at least up to 2020. After that, said Stone, Voyager will be planet Earth among the stars.
As the informed, every Voyager Golden Record, equipped with a phonograph recording of gold-plated copper. The tape contains 118 photos of planet Earth, the world's best music recording lasted 90 minutes, an audio essay consisting of various sounds on Earth started from blast mud, gonggongan dogs, until the sound departure rocket Saturn 5, introductory greetings from 55 human language, a whale, the scheme of brain waves of women who are in love, and acceptance of Kurt Waldheim, the Secretary-General of the UNITED NATIONS when it is.
"Billions of years from now, when the planet Earth and the continent's already changed the total, when the entire species of living creatures has mutated or extinct, Voyager will still ' talking ' to us," call the message on the Voyager record.
However, a number of observers, a possible alien find Golden Record very small. The reason, Voyager will not reach a distance of several light years away from the other star of up to 40 thousand years. (sj)
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