Jet Contrails* at Sunset in Paris

Captured from the 7th floor apartment of our friends Sylviane and Bernard, where we had tea and coffee this afternoon. We got to know them several years ago.  Here's a panorama from their lovely wraparound terrace, on the top floor of our building. This is a vivid view of it from below.

*Contrail is short for "condensation trail"--the link tells you more than you ever need to know :)  Here's a more striking view of them.