Our Solar System is a series of magnetic bubbles within
bubbles – plasma
within magnetic fields
from each other by huge, flowing sheets of
electric currents. It's a pattern that's repeated
throughout the rest of our plasma universe.
The Sun is enclosed in a Magnetic Bubble
As the solar wind streams outward, pulling
the Sun's magnetic field with it, it forms
a huge, teardrop-shaped magnetic bubble.
This bubble, the heliosphere, contains the
solar wind, the entire solar magnetic field,
and all the planets (many with their own
magnetic fields like Earth and Jupiter).
the outermost boundary of the heliosphere,
called the heliopause,
the solar wind meets
the interstellar medium, a plasma that permeates
our Milky Way galaxy. The Voyager 1 and 2 spacecrafts that were launched decades ago have finally approached this distant frontier.
The heliosphere is thought to be around 100
times the distance from Earth to the Sun
(100 AU). For comparison, Pluto is
about 40 AU from the Sun.