Solar Powered Flight

Well it landed after midnight having flown many hundreds of miles in the dark, so a little more advanced than one might presume.
 
Presumably there are batteries which release stored power during periods without direct sunlight.

Plus of course it's a glider so won't need to be powered all the time.
 
My flippant remark was because I can't get the link to open and so couldn't read the article sorry about that.

Does it have to be dragged into the air by another plane or can it take off itself?
 
No Mephistopheles it pulls itself into the air. It's a real feat of engineering and flew for almost 20 hours yesterday, proving that it has the battery capacity and energy recovery/harvesting to sustain flight for huge lengths of time. They're planning on getting across the Atlantic soon.
 
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