heliosphere

The heliosphere is not spherical, but the solar wind exists in all directions.

Although the heliosphere is variable the size of the solar system is not expanding due to universal expansion, which is only witnessed on a very large scale.

Maybe this a hidden new feature of gravity, and it is impossible to get out of the heliosphere.

Seeing posts about how the Voyager 1 was leaving the solar system led to me learning about the heliosphere.

And clearly even our mag field (and Sun's heliosphere) is not enough to shield us from those crazy cosmic rays.

Considering that it has enough power to continue data communications with Earth till 2025, it should be well into the heliosphere.

This could be because we haven't left the heliosphere yet, or it could be that our model was wrong.

The article confirms that it left the Heliosphere at Augst 2012.

The particular oscillations meant the spacecraft was bathed in plasma more than 40 times denser than what they had encountered in the outer layer of the heliosphere.

One result may be that the instruments send back cosmic ray information that no theory can explain how that would be consistent with being inside the heliosphere.

But no living human will ever leave the heliosphere.

Also a testament to their foresight that it managed to send back useful data decades after the end of the mission, for instance when it crossed the heliosphere.

Here's a small excerpt: "The particular oscillations meant the spacecraft was bathed in plasma more than 40 times denser than what they had encountered in the outer layer of the heliosphere.

Heliosphere is chock full of them, then Oort cloud has stuff way bigger than that (or any probe), even if sparsely spread out.