Transcript for Solar-Powered Plane Forced to Land in Japan
The toughest part of the journey hindered at the start solar impulse the plane attempting to circle the globe using only the power of the sun. Forced to land in Japan shortly after attempting the arduous trans Pacific crossing bad weather over the Pacific Ocean bringing a precautionary landing in new Goya. I'm Caroline Costello in New York for the team behind the journey the hope now is that the experimental plane will be able to take off again and soon. Once conditions improve in ABC's John sent worth has been following the planes journey and has this report. Up above the clouds today there was disappointment for the Swiss pilot on his extraordinary mission. With the soda plane flying well and just one day into what was meant to be a nonstop six states solo flight across the Pacific. The decision was made to land in Japan. Yeah. Some. The team at mission control in Monaco had seemed troubled a head a large cold front blocking the way across the ocean. So it's a debate of course that disappoints us lets you knew moments where everybody. He's extremely happy of the behavior of the plane it's just the weather that's happened just the weather doesn't fit everything we could do. Has been done and was successful. What we cannot control his due whether it. So we let them meddling we wait for better conditions and come to. Early on Sunday morning soda impulse to call from Easton China but this latest leg of the round the world attempt. With the wingspan of a Jumbo jet that the body weight of the family cop. The experimental. Plane needs favorable wins because it flies slowly. But it needs clear skies during the day so that it soda sales can charge that Dantre for nighttime flying. They've decided that to carry on into the weather front would simply be too risky. We're not daredevil this where explorers. Seoul we have to put this safety. On culpable the priorities and this is why we have NATO reveal all these type of trade things. As the team is absolutely prepare it for every diversions every problem. Negotiations with the thick elm trees. For now the team and is determined to recuperate in Japan and then try again. There's a question mark must remain. If these good weather played is so sensitive to bad then would it ever find its way across the world's biggest ocean. Joseph sub with BBC news Shanghai. And you can keep up with this story in real time my gallon the ABC news staff and storing the story for exclusive updates. On the go on Caroline Costello in New York.
This transcript has been automatically generated and may not be 100% accurate.