The Sun-powered aircraft Solar Impulse has finished its penultimate flight, landing in Egypt's capital, Cairo. It took off from the Spanish city of Seville at 04:20 GMT on Monday, taking just over 24 hours to make the trip. The zero-fuel aircraft is now in the home straight of its bid to circumnavigate the globe. Its final stop is Abu Dhabi, where the challenge began in March 2015. The two pilots sharing flying duties will each take one more turn at the controls. Andre Borschberg did the Seville-Cairo stage; Bertrand Piccard will complete the challenge by taking Solar Impulse back...
