Resources: The sun and space weather
"Space weather" includes the study, observation and forecasting of the phenomena
involving the flow of particles from the sun and the sun's magnetic field, and
especially how this affects Earth. Geomagnetic "storms" caused by
solar activity can disrupt some radio communications, endanger satellites, and
even knock out power systems.
Auroras the northern and southern lights are the one easily visible
result of storms in space. You can learn all about them by following the link
below to "Understanding auroras."