Image search brings up a few Italian sites, discussing a TV programme last week called Adam Kadmon – Rivelazioni. (Revelations)The picture shows four parallel contrails, probably from fighter jets flying in formation. Where and when was it taken?
Here's some planes making contrails over Italy. They were on their way back (with a tanker) from the Middle East to the US.
Here are some F22's pushing ahead of us to land after their final air refueling, at 26,000 feet.