Astronomers have finally seen Voyager 1 entering interstellar space.

Last year on Habré was published the news that "Voyager 1" went into interstellar space. Nevertheless, some scientists still had doubts, but recently it was proved that this spacecraft really went out into interstellar space.

The fact is that Voyager 1 caught up with the next wave of the "solar tsunami", generated by a powerful flash on the Sun. Interstellar space is filled with plasma, ionized gas. All this in quiet time can be imagined as a calm surface of the sea. But an outbreak on the sun generates a kind of wave, generating a "ripple" in the interstellar ocean. The Voyager 1 sensors record all these disturbances, giving the earth scientist an idea of ​​the conditions prevailing in the region where the apparatus is now located.
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The plasma surrounding Voyager 1 is currently much more dense (about 40 times) than it was within the solar system. It was first discovered in 2013, during an outbreak at the Sun (the outbreak occurred in March 2012, but the “solar tsunami” caught up with Voyager 1 only a year and 1 month later).

In addition, last year there was another emission on the Sun, which resulted in the formation of another wave, overtaking Voyager 1 in March already this year. The device again recorded a high density of the surrounding plasma.

Moreover, scientists recently discovered that at the end of 2012 another coronary surge occurred on the Sun, which at first went unnoticed. But after analyzing the previously obtained data, it turned out that during the impact of the wave from this outburst, the plasma around the apparatus again manifested itself. In general, scientists now have irrefutable evidence that Voyager 1 is in interstellar space.



And there is one interesting incident: Voyager 1 is in interstellar space, but formally this device is still within the solar system. The device will finally be considered to have left the Solar System when it goes beyond the "sphere of influence" of comets surrounding the Sun. Nevertheless, the apparatus left the heliosphere, and it happened back in 2012.

Now Voyager 1 may well be called an unmanned spacecraft, the first and so far the only one in the space fleet of mankind.