Question

Define Heliosphere???​

Answer 1

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The $\underline\mathtt\blue{Heliosphere}$ is the vast, bubble-like region of space that surrounds and is created by the Sun. In plasma physics terms, it is the cavity formed by the Sun in the surrounding interstellar medium. The "bubble" of the heliosphere is continuously "inflated" by plasma originating from the Sun, known as the solar wind.