The second traveler of dreams
The second traveler of dreams
Voyager 2 enters interstellar space.
It was an announced event. The data arrived from your plasma detector (PLS) and other instruments had given indications of which the border was next and the passage to the other side was imminent, perhaps of months, reason for which it was being followed with expectation its last moment in the Solar System. And now, finally, we have confirmation that the crossing has already taken place, and that the Voyager 1 She is no longer alone in her journey to eternity. Your sister has just started her own adventure with no return to the stars.
Until recently, the space surrounding the Voyager 2 was predominantly filled with plasma that came from Sun. It was what we call the solar wind, which creates a bubble, the heliosphere, that surrounds the planets. However on November 5 the PLS (which stopped working in the Voyager 1) observed a sharp decrease in the speed of the solar particles, and from that day stopped detecting it, which indicated the scientists, with a certain degree of certainty, that the probe, after 41 years of travel, had reached the border, the place where the direct influence of the Sun, and had entered into interstellar space. For the second time, Humanity stepped on the Universe that extends beyond.
"Working in Voyager makes me feel like an explorer, because everything we see is new"explains John Richardson, principal investigator of PLS."Although Voyager 1 crossed the heliopause in 2012, it did so in a different place and at a different time, and without the PLS data. So we keep seeing things that nobody has seen before"
It should be noted that although both probes have entered interstellar space, that does not mean that they have abandoned the Solar system properly speaking, something that could take thousands of years to occur, when I leave behind the Oort cloud. "They have simply" left the region that encompasses the heliosphere, where it reaches the solar wind before stopping, but that means they can now take data from the environment that exists between the stars, outside of solar interference. And that has infinite value for astrophysicists. "I think we are all happy and relieved that the Voyager probes have operated long enough to overcome this milestone"said Suzanne Dodd, project manager at the Jet Propulsion Laboratory (JPL)."This is what we have all been waiting for. Now we look forward to what we can learn by having both probes outside the heliopause"
In 1977 two probes came out of The earth with a limited mission, the exploration of Jupiter Y Saturn, worlds almost unknown at that time. Achieving it was something extraordinary, and nobody expected that to be the beginning. Four decades later they have arrived where no one had arrived before, becoming the first human ships to reach the stellar ocean. They are already a legend that will survive in our memory, even when the silence has fallen on them, something that will happen sometime in the middle of the next decade. For those who one day dream of reaching the stars, they are and will forever be the personification of that dream.The PLS data, the plasma detector, where the moment where Voyager 2 jumped to the other side of the heliosphere is appreciated.Voyager 2 in numbers.The 5 instruments that are still operating today. The rest were disconnected in past years to save the decreasing energy available.The current position of Voyager 2, outside the Helisofera, in full interstellar space, although it was not the Solar System itself.Comparing the data of the cosmic ray meters of both Voyager. The similarities clearly indicate that Voyager 2 is following the path of its sister, although the differences reveal that the conditions of its exit region are not identical, which already already reveals valuable information about the solar frontier.
NASA's Voyager 2 Probe Enters Interstellar Space
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