An attempt to make the first round-the-world flight in a solar-powered plane has got off to a flying start.
Solar Impulse 2 has completed its maiden leg of the journey, touching down in Oman. It arrived in Muscat after a 12-hour trip from Abu Dhabi.
Swiss adventurers Bertrand Piccard and Andre Borschberg are taking turns to pilot the singe-seat, 2,300 kilogram plane on its pioneering flight.
If all goes to plan, it will take around five months to complete the 35-thousand kilometre journey.
The plane will cross continents and the Atlantic and Pacific Oceans to get to the finish line, back in Abu Dhabi.
Its journey will span approximately 25 flight days at speeds between 50 and 100 kilometres per hour.