Our second sent to the stars
Our second sent to the stars
New signs that Voyager 2 is about to reach interstellar space.
A few weeks ago the alarms went off. His High Energy Telescope, which is part of the cosmic ray detection (CRS) instrument, had begun to detect a clear and constant increase in the latter, in rhythms that resembled those experienced by his sister when she crossed over to the other side. the heliosphere and entered the realm of the stars. It was the first sign that it could be approaching the final frontier of the solar kingdom, where the solar wind stops completely, and is about to jump into interstellar space.
Now we have in our hands another clear signal that the moment when the Voyager 2 I jumped to the other side may be close, when not to be imminent. In this case the data came from the Low Energy Telescope, also from the CSR, which is responsible for monitoring the lower energy particles that typically originate within the heliosphere. These particles decrease as we approach the heliopause and finally fall to near zero at that limit, where they can escape into interstellar space.
And that is what happened at the beginning of November. Suddenly, the low-energy particle rate of Voyager 2 was reduced, but not yet to almost zero, as it happened when the Voyager 1 He entered interstellar space. Scientists are now closely following events to determine when the great moment of the crossing takes place, which seems imminent. When that happens he will join his sister in the exploration of space that extends beyond the solar bubble, sending direct data from a totally new and unknown medium. Our second sent to the stars is about to reach them.
The vertical axis is the counting rate of low energy particles detected by the low energy telescope of the CRS every second. We can see the sudden collapse of November, although still not reaching 0, as happened with Voyager 1. We are close to the border.
Comparison between the data of Voyager 1, in red, and that already crossed to interstellar space, and those of Voyager 2, which may be about to do so. Although not identical, the data of the latter are similar enough to those who lived his sister just before the crossing that everything indicates that we are close to the big time.
At the gates of a new kingdom.
Excitement Increases as Voyager 2 sees a decrease in Heliospheric Particles
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