The battery problems on Solar Impulse 2 aren't going away anytime soon. The batteries, damaged by overheating, won't be repaired in time for the Solar Impulse team to continue on its round-the-world mission back to Abu Dhabi, where they took to the skies in April.

Solar Impulse, the solar-powered plane currently flying across the US, left Texas today on the third leg of its cross-country voyage. But it'll have to run an audible when it touches down in St. Louis after midnight tonight: the hangar reserved for the aircraft was battered by storms in the area, and the plane will land with a special inflatable hangar instead.