Space

“Voyager 2” went into interstellar space

After a 41-year journey, Voyager-2 became the second interstellar spacecraft in history to go beyond the heliosphere. The first man-made object to reach interstellar space was its predecessor, Voyager-1, launched from Earth 16 days later.

The Voyager-2 probe was launched into space by NASA on August 20, 1977, 16 days earlier than its twin Voyager-1, in order to study Jupiter, Saturn and the solar system. Voyager 2 was the first spacecraft to explore the planets Uranus and Neptune. In 1989, after the completion of this part of the mission, two “twins” were sent into deep space.

[perfectpullquote align=”full” bordertop=”false” cite=”” link=”” color=”” class=”” size=””]“For the second time in history, a man-made object has reached interstellar space,” a NASA statement said . “At the moment, the Voyager-2 space probe has emerged from the heliosphere, a protective bubble of charged particles and magnetic fields created by the Sun.”[/perfectpullquote]
Photo of Neptune and his companion Triton, sent by Voyager-2 3 days after the closest approach to Neptune in 1989.
Photo of Neptune and his companion Triton, sent by Voyager-2 3 days after the closest approach to Neptune in 1989.

It is worth noting that the device has not yet left the solar system, whose boundary is considered to be the outer boundary of the Oort cloud. “Voyager-2” will take about 300 years to reach the inner boundary of the cloud and, possibly, about 30 thousand years to cross it, “- noted at NASA.

Location probes "Voyager 1" and "Voyager 2"
Location probes “Voyager 1” and “Voyager 2”

Unlike its twin, the Voyager-2 spacecraft is equipped with the Plasma Science instrument (PLS), which can transmit invaluable information about the nature of the heliospheric mantle (heliosheath) and interstellar medium outside our solar system.

The graph showing the decrease in the number of heliospheric particles registered by the Voyager-2 spacecraft on December 9, 2018, confirming that the probe left the heliosphere
The graph showing the decrease in the number of heliospheric particles registered by the Voyager-2 spacecraft on December 9, 2018, confirming that the probe left the heliosphere

The Voyagers spacecraft are also known for their “Golden Records”, which contain various photos, our achievements in science, sounds of nature, music, and greetings in 55 languages, as a message for another intelligent life in space.

Goodbye Voyager 2, it was a great trip!

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