A giant glider-like aircraft has completed the first night flight propelled only by solar energy, organizers said on Thursday.
Solar Impulse, whose wingspan is the same as an Airbus A340, flew 26 hours and 9 minutes, powered only by solar energy stored during the day. It was also the longest and highest flight in the history of solar aviation, organizers said.
Bertrand Piccard, the Swiss president of the project, best known for completing the first round-the-world flight in a hot air balloon in 1999, said the success of the flight showed the potential of renewable energies and clean technology.
“We are on the verge of the perpetual flight,” he said.