Solar Impulse 2, the electric-powered aircraft, has completed its historic round-the-world trip as a message that clean-energy aircraft have a place in future air travel. With a total journey time of ...

Solar Impulse 2 is scheduled to take off next year and fly around the world using only the sun as an energy source. A lot of advanced engineering went into this craft, but we're still a long way from ...

After the Solar Impulse prototype broke 8 world records for solar-powered flight, creators Borschberg and Piccard knew it was time to tackle the next big challenge: a trip around the entire planet. In ...

For this sun-powered bird, the essential prerequisite was an extremely light aerostructure. The raw material that ultimately satisfied this need proved to be very thin composite tapes. The airframe’s ...

For those unfamiliar, the Solar Impulse 2 is an electric aircraft, which recently completed a round-the-world flight (recap/videos of accomplishment here); however during the night without the aid of ...

Solar Impulse 2 landed today in the UAE, completing its epic journey to become the first sun-powered airplane to circle the globe without a drop of fuel to promote renewable energy.

An experimental plane flying around the world without a single drop of fuel landed in California after a two-and-a-half day flight across the Pacific. Piloted by Swiss explorer and psychiatrist ...

In anticipation of its historic round-the-world flight attempt, the route planned for Solar Impulse 2 (Si2) has been unveiled. The first solar-powered plane capable of day and night flight, the Si2 ...

What has a wider wingspan than a 747, weighs the same as a car, and can fly almost forever without a drop of fuel? If you were in Payerne, Switzerland on Wednesday, you would have seen the answer as ...

Solar Impulse 2 is an aircraft on a mission -- to circumnavigate the globe using nothing but the power of the sun. The journey is being undertaken in multiple legs, and it kicked off several months ...