And good luck to them. Not sure I'd ever want to fly solar but there you go.

I was intrigued by this photo which shows a guy in the centre who must have upset someone and had the voodoo dust treatment like Beetlejuice...

That's a great photo,you can clearly see the structure in the tail that wouldn't look too far removed from some of the early Bleriot aircraft.

I think solar stands a good chance of becoming viable in aircraft due to the heights commercial craft operate at - you're above the cloud. As with all things electric, batteries are the enemy. They're just to heavy.

I've got say that I'm mightily impressed by the achievement.

They appear to be setting off at night - is that wise.....

I think geared fans will be the next step in aviation engines, a small efficient jet engine with a huge gear driven fan.

I agree, what an amazing project to be involved in. Lucky guys.