• Solar Impulse successfully completed a big step towards its goal of making the first solar-powered aircraft to circle the globe while burning no fuel and creating no pollution.

    The Solar Impulse-HB-SIA leaves the ground off the Payerne airfield in Switzerland.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • The crowd watches the HB-SIA as it prepared for takeoff.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • The HB-SIA got a running escort as it taxied down the runway.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • The solar-powered plane soared 1,200 meters (almost 4,000 feet) above the Earth in its 87 minute maiden voyage.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • The HB-SIA and its source of energy.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • The HB-SIA coming in for a landing.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • Solar panels can be seen on top of the wings in this earlier demonstration.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • In order to keep the plane light, the cockpit was built to take up as little space as possible.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • "This first flight was for me a very intense moment! The HB-SIA behaved just as the flight simulator told us! Despite its immense size and feather weight, the aircraft's controllability matches our expectations!" said Solar Impulse test pilot Markus Scherdel upon stepping down from the aircraft.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • A side view of the cockpit.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • The tail.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • The instrument panel in the cockpit.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • More of the instrument panel.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • The founders of the project are former fighter pilot and CEO of Solar Impulse André Borschberg (left front), and Bertrand Picard (right front), a psychiatrist and the first man to circle the globe in a hot air balloon.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • Congratulating the pilot.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • Here's the formal image of Solar Impulse's plane.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • Solar Impulse's first computer-generated models looks quite different for the test model.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • The Solar Impulse team celebrates their triumph.

    Credit: Solar Impulse

    Caption by: Andy Smith

  • Another historic first flight took place at Kitty Hawk, North Carolina where the Wright brothers made the first engine-powered flight.

    Credit: United States Library of Congress

    Caption by: Andy Smith

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Gallery: Solar airplane takes off

Solar Impulse successfully completed a big step towards its goal of making the first solar-powered aircraft to circle the globe.

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Solar Impulse successfully completed a big step towards its goal of making the first solar-powered aircraft to circle the globe while burning no fuel and creating no pollution.

The Solar Impulse-HB-SIA leaves the ground off the Payerne airfield in Switzerland.

Credit: Solar Impulse

Caption by: Andy Smith

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