Image credits The following images appear on the front page of this website. They were all found via Flickr, and are licensed under the Creative Commons. “Bubble on the Lawn” by Simon Evans. Licence CC BY-ND 2.0. “Star Trail Polaris” by Kenny Alexander. Licence CC BY-NC 2.0. “Disney Spaceship Earth” by Lee. Licence CC BY-NC-ND 2.0. “Stairwell to Illumination” by Per Gosche. Licence CC BY 2.0.