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CSU Department of Atmospheric Science
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Our top-rated department focuses on graduate education, cutting-edge research, and public service.
Reposted by CSU Department of Atmospheric Science
And here's a short explainer on aurora colors! 🎨
Aurora color guide! What creates the different shades?

Different atoms getting "excited" at different altitudes

The bright reds are a sign of a particularly intense event
November 12, 2025 at 4:08 AM