Heliosphere

usgb/ˈhiːliəˌsfɪr/
noun

The heliosphere is the region of space dominated by the solar wind, which is a stream of charged particles released from the Sun.

The heliosphere acts as a shield against cosmic rays from outside our solar system.
Visual representation of "heliosphere" - The heliosphere is the region of space dominated by the solar wind, which is a stream of charged particles released from the Sun.

Usage tips

Neutral

solar system,solar wind,interstellar medium

Definition 1 of 2
Visual representation of "heliosphere"
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Understanding Solar Activity

The heliosphere's boundaries can expand and contract depending on solar activity.

Illustration for Understanding Solar Activity
During solar flares, the heliosphere expands more than usual.
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Cosmic Ray Shielding

The heliosphere serves as a protective barrier against cosmic rays.

Illustration for Cosmic Ray Shielding
Astronauts outside of the heliosphere are at greater risk from cosmic radiation.
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Interaction with Interstellar Medium

The heliosphere is constantly interacting with the surrounding interstellar medium.

Illustration for Interaction with Interstellar Medium
Research is ongoing about how the heliosphere affects space weather.
Visual representation of the word "Heliosphere"

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