Photoshop CS6 tutorial showing how to make a colorful nebula and celestial sphere in deep space. PSD file: <a href="http://goo.gl/NVVMVm">http://goo.gl/NVVMVm</a ...

A sphere is a three-dimensional version of a circle, with all points on its surface being equidistant from the center. A sphere is also composed of a circumference, tangent, and chord, as well as ...

The small Icelandic island of Grímsey is trying to mark its place on the border of the ever-shifting Arctic Circle. And to do this they are using a 17,600-pound concrete sphere that will be ...