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xkcd #3196: Aurora Coolness
(imgs.xkcd.com)
Title text:
I've had countless nights where the line never left the bottom zone of the graph, but the few moments where it's climbed all the way to the top have made up for them all.
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3196/
Not sure where you are but apparently tonight is a good night for them across Canada! I’m going to wander out later and see what I can see.