When we discuss weather, we are typically referring to changes in Earth’s atmosphere. The term Space Weather extends this idea beyond the immediate atmosphere to include changes occurring in space, on the Sun, and in the Earth’s magnetosphere, ionosphere and thermosphere.

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Space Weather examines the consequences of the Sun’s behavior on the Earth.

The effects of Space Weather can range from damage to satellites arising from charged particles to disruption of power grids on Earth during geomagnetic storms, radio black-out on trans-polar aircraft routes, or disturbance of satellite positioning systems.

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Space Weather monitoring, research, and applications are more and more important with the increasing use of space in day-to-day life for telecommunications, observations and navigation.