The solar-powered aircraft flying high in the atmosphere | BBC News

The Zephyr is not your usual aircraft. It only travels at 40mph, it is launched by hand and it is completely solar-powered. The unmanned craft flies high in the atmosphere, to avoid commercial air traffic and adverse weather. So, what exactly is it used for? This video is from BBC Click, the BBC’s flagship technology programme. Subscribe here: For more news, analysis and features visit: #BBCNews