Heliosphere > Heliopause: https://en.wikipedia.org/wiki/Heliosphere#Heliopause https://en.wikipedia.org/wiki/Heliosphere#Heliopause The heliopause is due to a

Heliosphere > Heliopause: https://en.wikipedia.org/wiki/Heliosphere#Heliopause https://en.wikipedia.org/wiki/Heliosphere#Heliopause The heliopause is due to a balance of pressure between the Ram pressure of the solar wind, and the Total pressure of the interstellar medium. The "pressure" of such fluidic solar and interstellar "wind" is due to n-body gravity or the shape of spacetime.