I used light effects and blending layers. Copy and paste it so many times..
Thanx to http://browse.deviantart.com/resources/?qh=&section=&q=old+screen#/d19ash8

transform, flip, brigntness & contrast, hue & saturation

The planet Mars, crimson and bright, filling our telescopes with vague intimations of almost-familiar landforms.

Using NASA Imagery
http://www.nasa.gov/audience/formedia/features/MP_Photo_Guidelines.html

Just letters