The Solar Impulse 2 prepares to fly from California to Arizona on Monday, the first flight over North America in the historic trip around the world.
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16 Pictures From an Epic Solar Flight Around the World
See the Solar Impulse 2's attempt to make history and promote solar power.
The Solar Impulse 2 is another step closer to completing a historic trip around the world, all on solar power. The experimental craft landed in Phoenix, Arizona, Tuesday morning, after flying nearly 16 hours from Mountain View, California.
The voyage was the plane's first over North America, echoing the team's experimental flights with the previous Solar Impulse 1 in 2013. The plane landed in California on April 24 after flying thousands of miles from Hawaii. The most arduous and dangerous legs of the journey are now in the pilots' rearview mirrors.
(Read more about the genesis of the project, learn how the pilots cope with the tough flights, or see more photos of the quest.)
The team spent months out of the limelight in