This summer, I was traveling with SAS Airlines. The airlines added a tail camera view to the passengers' menu, so with a click on the screen we could choose to see the airplane flying some 40,000 feet above the ground. What a cool feature!
When watching the sunrise, I witnessed a rare occurrence of a green ray of the Sun. I have heard about that phenomenon, but have never seen it. It was astonishing to see; as a human, as a human, I just remained overwhelmed by the beauty of nature; as a physicist, I admired the refraction of light from a new perspective. Here is the picture: