Why rare Auroras are easier to see this week
Vocab level: B2
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An American astronaut is sharing a stunning view from the International Space Station this week.
A red aurora.
This is video taken by Don Pettit, who says he saw scenes like this two or three times during his 6-month mission to the ISS.
An aurora is caused by the interaction of charged particles from the sun when they collide with the Earth's magnetic field and atmosphere.
Red auroras, however, are more rare than green auroras because they are associated with intense solar activity.
A powerful solar storm this week has also made a stunning wave of auroras more visible than usual to some of us here on Earth.
Parts of the lower Midwest and Oregon getting a glimpse of the northern lights.
Did you see that?
Did you snag any photos or videos? If so, send them to our @CNN10 Instagram account so we can share.
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