Project Loon is an experimental project by Google X that aims to provide internet connectivity to rural and remote areas using high-altitude balloons. The balloons float in the stratosphere approximately twice as high as commercial airplanes and work together to beam an internet signal to the ground. Solar panels power the transmitters on the balloons which can stay aloft for over 100 days. The technology has potential to bring internet access to parts of the world that lack infrastructure and in disaster situations. Google is currently testing Project Loon in limited areas.