So Voyager found out there is this bubble surrounding our solar system made up of solar material blown outwards by solar wind and acts as a border between the solar system and the rest of space has a temperature of 30,000-50,000 Kelvin.
For reference the surface of the sun has a temperature of roughly 5770 kelvin
Googled to see if this was true and
NASA’s Voyager Spacecraft Found A 30,000-50,000 Kelvin “Wall” At The Edge Of Our Solar System
Less of a “wall (of fire)” and more of a “fine mist (of fire)” – both Voyager craft passed through unharmed because the superheated particles are so spread out:
While not a hard edge, or a “wall” as it has sometimes been called, here both spacecraft measured temperatures of 30,000-50,000 kelvin (54,000-90,000 degrees Fahrenheit), which is why it is sometimes also referred to as a “wall of fire”. The craft survived the wall as, though the particles they measured were extremely energetic, the chances of collision in this particle-sparse region of space are so low that not enough heat could be transferred to the duo.
