However, the Voyagers aren't inside the Fluff yet, how can they measure the cloud's magnetic field strength? By measuring the size of the heliosphere (which is maintained by the outward magnetic pressure of the sun's magnetic field), the probes have been able to deduce how much inward magnetic pressure is pushing down on the heliosphere. This inward pressure is being caused by the Local Fluff, so its magnetic field can be indirectly measured.
More Fluff, More Encounters
The Local Interstellar Cloud isn't the only cloud of fluff out there, and now Opher theorizes that other interstellar cloud formations may be highly magnetized too.
As the solar system continues to orbit around the galactic disk, it will encounter more clouds, deforming the heliosphere to lesser or greater degrees, potentially influencing life on Earth.
Cosmic rays originating from outside the solar system continuously bombard our atmosphere, but the quantity of these high-energy particles that rain down are influenced by the amount our heliosphere is deformed. The greater the pressure, the smaller the heliosphere becomes, and the more cosmic rays enter the inner solar system.