<i>Solar Impulse</i>

This undated handout picture released on November 5 in Duebendorf shows a digital representation of the prototype solar powered aircraft HB-SIA currently being built in northern Switzerland. A prototype of the "Solar Impulse" round-the-world solar plane should make its first piloted flight in autumn 2008, the Swiss project leaders announced. If successful, the dainty 1.5-tonne plane could make a pioneering 36-hour flight through the night in 2009, piloted by round-the-world ballooning pioneer Bertrand Piccard.Photo: AFP