Solar Impulse's CEO and pilot Andre Borschberg flies in the solar-powered HB-SIA prototype airplane above Lake Leman near Vevey during a test flight from its base in Payerne to Geneva International airport. Reuters/Denis Balibouse
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Solar Impulse project president and pilot Bertrand Piccard takes off with the solar-powered HB-SIA prototype airplane during a test flight at Payerne airport. The Solar Impulse HB-SIA, which has 12,000 solar cells built into its 64.3-meter (193-foot) wings, is a prototype for an aircraft that its creators hope will carry out its first circumnavigation of the globe from 2014. Reuters/Denis Balibouse
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Solar Impulse project president and pilot Bertrand Piccard lands with the solar-powered HB-SIA prototype airplane during a test flight at Payerne airport. The Solar Impulse HB-SIA, which has 12,000 solar cells built into its 64.3-meter (193-foot) wings, is a prototype for an aircraft that its creators hope will carry out its first circumnavigation of the globe from 2014. Reuters/Denis Balibouse
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Pilot and CEO of Solar Impulse Andre Borschberg smiles as he poses after landing the Swiss solar-powered airplane at Le Bourget Airport, near Paris, where it will be exhibited at the Paris Air Show, which opens on June 20. Reuters/Michel Euler/Pool
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Solar Impulse's CEO and pilot Andre Borschberg takes off with the solar-powered HB-SIA prototype aircraft during a flight from Brussels to Paris. Reuters/Francois Lenoir
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Staff push the Solar Impulse's solar-powered HB-SIA prototype airplane after a test flight at Payerne airport. Reuters/Denis Balibouse
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A staff member rides a bike in the Solar Impulse's solar-powered HB-SIA prototype airplane hangar at Payerne airport. The Solar Impulse HB-SIA, which has 12,000 solar cells built into its 64.3-meter (193-foot) wings, is a prototype for an aircraft that its creators hope will carry out its first circumnavigation of the globe from 2012. Reuters/Denis Balibouse
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Solar Impulse's CEO and pilot Andre Borschberg flies in the solar-powered HB-SIA prototype airplane during its first successful night flight attempt at Payerne airport. (Reuters Photo)
