FILE - In this April 23, 2016 file photo, Solar Impulse 2 lands at Moffett Field in Mountain View, Calif., completing the leg of its journey from Hawaii in its attempt to circumnavigate the globe.

AP Photo/Noah Berger, File More

TULSA, Okla. AP -- A solar-powered airplane that landed in Oklahoma last week is headed to Ohio on the latest leg of its around-the-world journey.

It departed from northern California in the early hours of May 2 and landed at the airport southwest of Phoenix 16 hours later.

Last month, it flew from Hawaii to California.

The crew was forced to stay in Oahu, Hawaii, for nine months after the plane's battery system sustained heat damage on its trip from Japan.

Project officials say the layovers give the two Swiss pilots — Bertrand Piccard and Andre Borschberg — a chance to swap places and engage with local communities along the way so they can explain the project, which is estimated to cost more than $100 million.

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