Voyager missions detect increase in density of space outside the solar system

The transcript discusses Voyager 2's journey beyond the solar system, revealing increased space density, supporting Voyager 1's findings. It explains the heliopause, the solar system's boundary, and the heliosphere, a magnetic bubble. Recent studies suggest the heliosphere may resemble a deflated croissant, with a central bulge and jets. Theories propose increased density due to interstellar magnetic fields or material buildup near the heliopause.

What does the 3D simulation of the heliosphere reveal about its structure?

Describe the potential reasons for the increase in density detected by the Voyager spacecraft.