An unmanned Zephyr solar plane has flown for 7 days non-stop and is still in the air, according to the BBC’s Jonathan Amos.
The Zephyr is being tested at the US Army’s Yuma Proving Ground in Arizona, and will be brought down after it has flown for two weeks.
“Zephyr is basically the first ‘eternal aircraft’,” says project manager Jon Saltmarsh.
