Steve Fossett

The team behind the sun-powered Solar Impulse 2 plane on Tuesday said it needed an additional 20 million euros ($22 million) to complete a historic round-the-world flight, after battery damage grounded it for months.

The Solar Impulse 2 aircraft completed an historic flight today after circling the globe without so much as a drop of fuel, then touching down seemingly effortlessly in Hawaii.

The team behind the sun-powered Solar Impulse 2 plane on Tuesday said it needed an additional 20 million euros ($22 million) to complete a historic round-the-world flight, after battery damage grounded it for months.

The Solar Impulse 2 aircraft completed an historic flight today after circling the globe without so much as a drop of fuel, then touching down seemingly effortlessly in Hawaii.