There is a chance of a strong storm hitting Earth later this week.
A geomagnetic storm watch has been issued by the National Oceanic and Atmospheric Administration's Space Weather Prediction Center after recent eruptions on the sun that have triggered strong solar flares and multiple "coronal mass ejections".
There is a very efficient exchange of energy from the solar wind into the space environment surrounding Earth.
The largest storms that result from these conditions are associated with solar mass ejections where a billion tons or so of plasma from the sun, with its embedded magnetic field, arrives at Earth
There is a chance that the storm will reach a level of 3 out of 5 on the severity scale.
The power grid could be affected by that.
The northern lights can be seen as far south as Iowa on Thursday.
Sky watchers are anticipating a brighter than usual light show due to the chance of a collision of multiple coronal mass ejections.
The northern lights were so bright that photographers captured the colorful show even in the heart of Seattle.
Some people are happy about the solar eruptions.
TonyPhillips wrote in a post that the sun just flung a bunch of cool, darkplasma into space. Don't look at the impact.
Don't worry if you don't see it. NASA said last month that solar events will increase as we get closer to maximum solar in 25 years.
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