I knew I saw something similar, thanks for the info. Quoting Jim Warthman <jim.warthman@xxxxxxxxxxxxxxxxxxxxxxxx>: > What's strange about that is I had exactly the same thought! :-) > > These look like "old" contrails from the Aurora, which supposedly produces > unusual "soap-on-a-rope contrails with an unusual propulsion system. > > Here are examples: > > http://aurorapage.tripod.com/technical/contrails.html > > And much more info is available here: > > http://aurorapage.tripod.com/ > > Enjoy! -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.