Sky science
Solar Wind
Direct answer
Solar Wind: The Solar Wind is a continuous outflow of charged particles and embedded magnetic field from the solar corona.
It is the Sun’s persistent plasma stream.
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At a glance
- Found in
- Astronomy & Skywatching
- Related
- Solar Prominence, Coronal Mass Ejection, Heliosphere, Heliopause
It is the Sun’s persistent plasma stream.
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The story behind Solar Wind
Spacecraft measurements confirmed a flow predicted from the corona’s high temperature.
A one-minute story
The Wandering Stars
How the moving planets were watched, named and found, and what a transit is.
Why Solar Wind matters
Solar Wind shapes planetary magnetospheres, comet tails, space weather, and the heliosphere.
How to read Solar Wind
Read speed, density, temperature, and magnetic orientation together.
Solar Wind in practice: an example
A southward interplanetary magnetic field can couple efficiently with Earth’s magnetosphere.
Where readings of Solar Wind go wrong
One speed value cannot determine geomagnetic effects or local aurora visibility.
Sources and editorial method
Research references used for this entry include:
- NASA Science: The Sun - NASA reference for solar structure, activity, the solar wind, and heliophysics.
- NASA Science: Solar System Exploration - NASA overview of planets, moons, small bodies, rings, and the structure of the Solar System.
- Source
- The Great Almanac Dictionary
- Category
- Astronomy & Skywatching
- Last updated
- 2026-09-26
Follow the solar wind
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Common questions
What is the Solar Wind?
The Solar Wind is a continuous outflow of charged particles and embedded magnetic field from the solar corona.
What do people get wrong about the Solar Wind?
One speed value cannot determine geomagnetic effects or local aurora visibility.
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