The release name for Fedora 13 is Goddard  as quoted : "Since
Konstantin Tsiolkovsky was a rocket scientist, so is Robert H. Goddard".
With some research, theme will be based on these following categories:
- Rockets (propulsion, spacecraft) - http://en.wikipedia.org/wiki/Rocket
- Space (based on Goddard Flight Center website) - http://nasa.org/goddard
Please submit ideas either on mailing list or wiki as long it is related
to the quoted theme. You can use images from Nasa website free to be
modified . Solar theme should not be considered because Fedora 10
Cambridge already used it.