he
lios
phere
Plural
heliospheres
1
the space surrounding the Sun dominated by solar wind
- Solar wind particles create the heliosphere's boundary.
- The heliosphere is a bubble of solar wind and magnetic fields.
- The heliosphere extends far beyond the orbit of Pluto.
- Interstellar winds compress the heliosphere on one side.
- The shape of the heliosphere resembles a teardrop.