Then, how can survive Pooh? Voyagers found the answer to this question. 'The data from Voyager, show that "Pooh" magnetization is much stronger than previously thought – the force of the magnetic field is in the range of 4 to 5 mikrogauss' – says Ofer (Opher). 'This magnetic field can provide additional pressure that can resist destruction. " Two NASA space research probes – Voyager – flying in the direction of the borders and beyond the solar system more than 30 years. Now they have crossed the orbit of the planet Pluto and is on the verge entry into interstellar space – but not yet entered it. "Voyager is currently not yet reached the Local Pooh '- says Ofer (Opher). – 'But they come close and could "feel" the behavior of the cloud as they approach. " "Pooh" is held exactly on the edge of the solar system magnetic field of the sun and blown by the solar wind's magnetic bubble width of more than 10 billion miles.
Called 'heliosphere', this is a bubble shield, which helps protect all the objects the solar system from galactic cosmic rays and interstellar clouds. Both Voyagers are located in the distal layer of the heliosphere or 'heliosheath, where the solar wind slows down interstellar gas pressure. Voyager 1 has entered the heliosheath in December 2004, after almost 3 years, in August 2007, Voyager 2 was repeated, his way. These crossings have become key heliosheath for the discovery made by Ofer and his et al. Dimensions heliosphere are determined by law of equilibrium of forces: the solar wind blows a bubble from the inside, while the Local Fluff compresses it on the outside. Penetration of Voyager in heliosheath it possible to establish approximate dimensions of the heliosphere and, accordingly, the pressure exerted by the Local Pooh.
Part of this pressure is caused by the magnetic field and corresponds to 5 mikrogaussam what Ofer Group (Opher) reported in the journal Nature. The fact that Pooh highly magnetic, means that in the galactic environment may also be other clouds. Over time, the solar system collide with some of them, and their strong magnetic fields can compress heliosphere even greater extent than it does now. Additional compression may allow more cosmic rays penetrate into the solar system that may have an impact on the Earth's climate and the ability of astronauts to make safe flying in space. On the other hand, the astronauts would not have to fly so far, because interstellar space would be to us a lot closer than ever. These events unfolded in a long time scale of tens to hundreds of thousands of years, depending on how long it takes the solar system to move from one cloud to another. 'What is interesting time we can expect in the future! "- Ofer exclaims. Astrogorizont – NASA news in Russian