Solar Impulse

The Solar Impulse 1 rests in its inflatable hangar at Lambert Airport after landing in St. Louis on June 4, 2013.
Véronique LaCapra | St. Louis Public Radio

Two years ago, we reported on a solar plane that touched down in St. Louis on its way across the United States.

Now it's successor is on its way around the world.

(via Solar Impulse)

A solar powered airplane that landed in St. Louis last Tuesday is scheduled to depart early tomorrow morning [Friday].

This will be the 4th leg of the aircraft’s cross-continental flight.

Solar Impulse was originally scheduled to fly directly from St. Louis to Washington DC. But because of strong winds the plane will make an additional stop in Cincinnati to allow the team to rest and switch pilots.

The plane’s 12,000 solar cells power it by day while recharging batteries that allow it to fly at night.