CHRISTIAN DARKIN / SCIENCE PHOTO LIBRARY CHRISTIAN DARKIN / SCIENCE PHOTO LIBRARY
Unmanned high altitude aircraft. Computer artwork of high altitude airships (top right and lower left) and propellor driven high altitude planes (top left and lower right). These aircraft are powered by solar cells and designed to cruise at high altitude. They can combine in formation to form a telecommunications network in remote areas or be used for spying and military reconnaissance.
Model release not required. Property release not required.