Another quick post to show you the card I made for my brother's birthday (not until December) but you have to strike while the ideas are fresh.
I used some navy cardstock and applied white shabby frontage for the star effect. The little rockets and space ships are a memory box die which i attatched using folded acetate which makes them look as though they are floating. I have also added stars and self adhesive gems to add to the solar system effect.
This is just up my Brother's street, he loves astronomy and planets and space.