An aircraft dubbed 'Solar Impulse', HB-S

An aircraft dubbed 'Solar Impulse', HB-SIA prototype, is rolled out of a hangar for an initial series of stationary tests involving engines and electromagnetic interference on November 6, 2009 in Duebendorf aerodrome near Zurich. The aim of the wasp-shaped prototype, with wingspan of a jumbo jet, is to test the feasibility of a complete flight sequence over two days and one night under solar energy power only and pave the way for a second aircraft to attempt a round the world flight in five stages set for 2012. AFP PHOTO / FABRICE COFFRINI (Photo credit should read FABRICE COFFRINI/AFP via Getty Images)