Of all the videos we've watched that explain the cause of the aurora, there's one that we keep going back to.
If it's not mind-blowing enough making sense of what you are witnessing, the cause of the aurora is quite incredible in itself...
Aurora are colorful lights in the night time sky primarily appearing in Earth's polar regions. But what causes them? The culprit behind aurora is our own Sun and the solar plasma that is ejected during a magnetic event like a flare or a coronal mass ejection. This plasma travels outward along with the solar wind and when it encounters Earth's magnetic field, it travels down the field lines that connect at the poles. Atoms in the plasma interact with atoms in Earth's upper atmosphere. This reaction produces the colorful lights we call aurora.
Source - NASA https://m.youtube.com/watch?v=HJfy8acFaOg
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