NEW YORK What started as a sky-is-the-limit dream for two Swiss explorer/entrepreneurs is now one giant, soaring, fuel-free, #futureisclean reality. Bertrand Piccard (@bertrandpiccard) André Borschberg (@andreborschberg) and their innovative solar plane, Solar Impulse 2, reached a milestone Saturday as it completed a trip across the United States. The solar-powered airplane on a globe-circling voyage that began in the United Arab Emirates more than a year ago.

The Swiss-made plane landed at John F. Kenney International Airport at 4 a.m. after a 4 hour 41 minute flight of about 165 miles from Lehigh Valley International Airport in Pennsylvania. Its trip across the U.S. mainland began April 24, when Solar Impulse landed in San Francisco from Hawaii.

The aviation industry told them #solarimpulse was an impossible project so they built their own team & found new solutions.

Read more from their logbook here.

Have you ever seen bicycles assist an airplane landing at JFK? Watch the video below. Landing is at 25:30.