Solar Wind
The invisible current that carries Sol’s influence through the Solar System. The solar wind is a constant stream of charged particles flowing outward from the Sun, shaping space weather, driving aurorae, disturbing spacecraft, and helping define the Solar System’s outer boundary.
Field briefing /
What it is
A continuous outward flow of charged particles released from the Sun’s outer atmosphere.
Particle stream /
A moving magnetic environment
The solar wind is not just empty motion. It carries part of the Sun’s magnetic field with it, creating a changing space environment around planets, moons, comets, and spacecraft. Fast streams and solar eruptions can disturb this environment and intensify space weather.
Space weather /
What it can affect
The solar wind links solar activity to planetary environments and human technology.
Earth interaction /
Magnetosphere shield
Earth’s magnetic field deflects much of the solar wind, but the interaction is not passive. Energy can enter the magnetosphere, drive aurorae, and trigger geomagnetic storms when solar activity is strong.
Outer boundary /
Toward the heliosphere
The solar wind thins with distance, but its influence helps form the heliosphere: the broad bubble of solar material and magnetic influence surrounding the planets.
Sources /
Space-weather references
Primary references for solar wind, solar activity, and operational space-weather monitoring.
NASA Solar Wind
Overview of the solar wind and its role in the heliosphere.
NOAA Space Weather
Operational forecasts, alerts, and solar activity monitoring.
Solar Flares
Solar eruptions and energetic events linked to space weather.
Coronal Mass Ejections
Large plasma eruptions that can intensify geomagnetic storms.