[Tee tiong huat]

Scientists call region of space influenced by sun the heliosphere so without an interstellar probe, don't know much about its shape. The heliosphere blocks many cosmic rays, shown as bright streaks in this animated image, from reaching earth and planets in our solar system. The heliosphere blocks many cosmic rays, shown as bright streaks in animated image, from reaching our & planets on our solar system. NASA Space Center.
The sun warms the Earth, making it habitable for people and animals. But that’s not all it does, and it affects a much larger area of space. The heliosphere, the area of space influenced by the sun, is over a hundred times larger than the distance from the sun to the Earth.

The sun is a star that constantly emits a steady stream of plasma – highly energized ionized gas – called the solar wind. In addition to the constant solar wind, the sun also occasionally releases eruptions of plasma called coronal mass ejections, which can contribute to the aurora, and bursts of light and energy, called flares.

Plasma coming off the sun expands through space, along with sun’s magnetic field. Together they form the heliosphere within the surrounding local interstellar medium – the plasma, neutral particles and dust that fill the space between stars and their respective astrospheres. Heliophysicists like me want to understand the heliosphere and how it interacts with the interstellar medium.
https://www.space.com/heliosphere-shape-...ific-probe