Solar Impulse 2 touches down in Abu Dhabi completing zero-fuel circumnavigation - in pictures

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  Solar Impulse 2 prepares to land after completing a round-the-world flight without fuel at the Al Bateen Executive Airport in Abu Dhabi. Christopher Pike / The National

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  Pilot Bertrand Piccard waves to a supporter before the press conference in Abu Dhabi. Christopher Pike / The National

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  Ground crew attend to the Solar Impulse 2 on the runway at the Al Bateen Executive Airport in Abu Dhabi. Christopher Pike / The National

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  Solar Impulse 2 sits on the runway after completing a round-the-world flight without fuel in Abu Dhabi. Christopher Pike / The National

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  Solar Impulse 2 prepares to land after completing circumnavigation using only the power of the sun. Christopher Pike / The National

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  Solar Impulse 2 lands in Al Bateen Executive Airport in Abu Dhabi. Christopher Pike / The National

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  Co-pilots Bertrand Piccard, left, and Andre Borschberg celebrate after Solar Impulse 2 landed in Al Bateen Executive Airport in Abu Dhabi. Christopher Pike / The National

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  Co-pilots Andre Borschberg, left, and Bertrand Piccard embrace after Solar Impulse 2 lands in Abu Dhabi. Christopher Pike / The National

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  The Solar Impulse 2 plane is seen with an Emirati flag at Al Bateen Executive Airport after landing in Abu Dhabi. Adam Schreck / AP Photo

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  Solar Impulse 2, approaches to land at Al Bateen Executive Airport in Abu Dhabi. Adam Schreck / AP Photo

Solar Impulse 2 completed on Tuesday morning its round-the-world journey using only solar energy, after landing in Abu Dhabi.