The final leg of an unprecedented world tour by a solar-powered plane was postponed Saturday due to the pilot’s health, he said in a message on Twitter. The Solar Impulse 2 had been scheduled to leave Cairo for Abu Dhabi.…
The final leg of an unprecedented world tour by a solar-powered plane was postponed Saturday due to the pilot’s health, he said in a message on Twitter. The Solar Impulse 2 had been scheduled to leave Cairo for Abu Dhabi.…