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"Voyager 1" reached the frontier of the solar system.

The spacecraft Voyager 1, launched into space in 1977, reached the outer limits of the solar system. This at a meeting of the American Geophysical Society told the experts that supervise the mission of the unit. Summary of the story is presented on the portal Space.com.

Voyager 1 flew 17.4 billion miles and is in an area called gelioschit (heliosheath). The boundaries of our solar system emit from the behavior of moving away from the star of charged particles (solar wind). Initially they fly with great speed and pushes the particles from interstellar space. Gradually the speed of the solar wind drops, and in a certain area, called the boundary shock wave (termination shock), particles change their direction of motion (turning).

Gelioschit is just outside the boundary of the shock wave, followed by the first of the conventional boundaries of the solar system — the so-called the heliopause (heliopause). It is expected that the Voyager will overcome this limit and will leave the solar system in 2014 (according to other classifications of the solar system extends to more remote boundaries). The device approaches the heliopause at a speed of around 61.2 thousand kilometers per hour.

Scientists determine in which area of outer space is the unit, estimating the velocity of different particles of the solar wind around it. When Voyager crosses the boundary of the solar system, its detectors are required to register a sharp drop in the number of hot particles and a simultaneous increase in the number of cold particles. Learn about the different boundaries of the solar system can be read here.

Voyager 1 was launched after 16 days of the apparatus, the «twin» Voyager 2 ". The second «Voyager» is moving through another route, and slightly slower than team-mate (his speed is 56.3 thousand kilometers per hour) and is now at a distance of 14.1 billion kilometers from the Sun. Both devices work on nuclear fuel.


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