Creating aesthetically pleasing home screens is the new cool thing to do, but with so many options, it can quickly become overwhelming. So, first thing's first: choosing a wallpaper background to ...

In this space wallpaper of the Andromeda galaxy from ESA’s Herschel space observatory, cool lanes of forming stars are revealed in the finest detail yet. The image was released Jan. 28 2013.

This cool space wallpaper shows a bow shock is created in space when two streams of gas collide. The young star LL Ori Emits a solar wind, a stream of charged particles moving rapidly outward from ...