41-year old NASA probe may be near interstellar space

Katie Ramirez
October 8, 2018

In addition, while Voyager 2 received a gravity assist from Jupiter, Saturn, and Uranus, its Neptune flyby slowed it down, so it lagged behind even farther.

Voyager 1 experienced a similar spike in cosmic rays in 2012, notes NASA.

And because Voyager 2 isn't following precisely in its predecessor's steps, scientists aren't positive that its cosmic exit will result in identical changes to the data that the spacecraft reports.

The NASA probe has reached the edge of the Solar system, the Probe of the American space Agency have recorded increase of the concentration of cosmic rays produced another solar system, which means that he approached the border of interstellar space, reports the Chronicle.info with reference to UKRINFORM.

The team behind Voyager 2 knows that the spacecraft is now nearly 11 billion miles (17.7 billion kilometers) away from Earth. NASA scientists aren't sure when Voyager 2 will join its twin by crossing the heliosphere boundary, an area known as the heliopause.

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Since late August, the "Cosmic Ray Subsystem" instrument on Voyager 2 has measured about a five percent increase in the rate of cosmic rays hitting the spacecraft compared to early August.

"We're going to learn a lot in the coming months, but we still don't know when we'll reach the heliopause".

This illustration shows the positions of the Voyager 1 and Voyager probes with the heliosphere marked. The mission Voyager is part of the Observatory system geleophysic NASA.

Voyager 2 will be the second object made by humans to successfully flee the solar system whenever it will decide to do so.

"We're seeing a change in the environment around Voyager 2, there's no doubt about that", said Voyager Project Scientist Ed Stone of Caltech. Launched by NASA from Cape Canaveral, Florida, the Voyagers were originally created to conduct closeup studies of Jupiter and Saturn, Saturn's rings, and the larger moons of the two planets. That was about three months before Voyager 1 crossed the heliopause and entered interstellar space. A good portion of these particles are blocked by the heliosphere, so the ground teams are expecting Voyager 2 to measure an increase in cosmic rays as it reaches and crosses the heliosphere. In other words, the bubble of our solar system periodically expands and contracts. "We're not there yet - that's one thing I can say with confidence".

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