While its fine to stare at the night sky now and then. Doing it every night for years is boring. I used to take star charts, which was cool a few times. After awhile it got boring. The Northern lights can be cool. Most nights you can't see anything anyway. The sky can be black, the ground black, or the moon washes out the stars. Weather? Not at altitude over the North atlantic or the polar routes. Besides, I can see the Radar display with the lights on.