The first entirely solar-powered aircraft flew cross-country.

[riazur]

Solar Impulse, a plane that runs off energy from the sun, successfully completed its historic trip across America in July. After making stops in several U.S cities, the journey ended with a dramatic landing at JFK airport due to a rip in the fabric on the lower side of the left wing.

The plane was not in any danger, and the trip proved that a solar-powered aircraft could fly, day or night, from coast-to-coast.