After Roy's full-blown alien marbles, these are my absolute favorite style he did. It is all surface work space design, and it is ASTOUNDING how he was able to capture so much of the essence of space on the surface of a marble like this!! This marble has not one, but TWO comets, errr, alien spacecraft flying through space. Planets and other mysterious space matter abound causing tricky navigation for this alien life form. Let's hope those space rocks can protect us from what's coming!! Signed 'Gremlin 2013'. Do NOT miss out on this slice of pure marble history here!