Plane powered just by the sun
25 May 2012 Last updated at 15:40 BST
A plane powered just by the sun's rays has flown from Switzerland to Morocco.
It's the first time a plane has been able to fly across continents without using any fuel.
The flying machine's wings are covered in solar panels which turn the sun's rays into electricity to power the plane's propellers.
The plane's engineers are hoping that by 2014 they'll be able to use it to fly all the way around the world.