By Eyizle Ene-Okon
12:15pm
Solar Impulse 2, an experimental solar-powered aircraft, has taken off
from the eastern Chinese city of Nanjing for Hawaii on a leg described
as "risky".
Solar Impulse 2 has been designed to fly on three engines if one
fails. It can also share the electricity in its batteries between
engines.
The plane, which has a wing span wider than a jumbo jet but weighs
little more than a car.
