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/
My best aurora experience took place in August, oddly enough. It was a warm night, so I went out on the deck and laid on the chaise lounge, my big cat of the time flopped out on my chest. The moon was about 3/4 full and for some reason a small prop plane was circling overhead (there's a flight school out at the airport, probably it was from there). Then I saw the ghostly curtain of an aurora to the north. Very poetic experience.