After debating the issue for over a year, scientists who received new measures agree that the probe Voyager 1, launched by NASA in 1977 with his sister Voyager 2 , has indeed left the solar system, becoming the first object designed by man to enter outer space.
“It is done,” said Thursday the press Edward Stone, Director of the Institute of Technology California working on the Voyager program.
crucial that evidence that Voyager 1 crossed the boundary of our solar system appeared by chance, when solar flares have catapulted particles towards Voyager in 2011 and 2012. It took a year for these particles reach the probe and provide guidance for determining the plasma density is where Voyager today.
plasma, which consists of charged particles, is significantly present in interstellar space in the solar system where the solar wind dominates.
On the basis of these new measures, the scientists believe that Voyager 1 has in fact left the solar system in August 2012.
That summer, the probe sent by radio waves from other meaningful data: the sharp increase in cosmic radiation where it is and a consequential reduction in solar particles
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Voyager 1 is now at 21 billion kilometers from Earth and traveled nearly 1.6 million miles per day. It will pass in 40,000 years in the remote suburbs of a star in the constellation Camelopardalis, called AC +79 3888.
2020, scientists think they will start off its instruments, and 2025, both Voyagers will have any more energy and enter into the silence of infinite spaces.
two Voyager probes, launched one and the other in 1977 to study the most distant planets of our solar system (Jupiter and Saturn, and Uranus and Neptune), carry with them objects representative of our civilization including a gold disc containing photographs and music, sounds and languages ??of the Earth. The project had been initiated by the astronomer Carl Sagan, who died in 1996.
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