Astrosaurs．[6]，The space ghosts Astrosaurs．The Space Ghosts Astrosaurs:The Space Ghosts Astrosaurs．[10]，The star pirates Astrosaurs．[3]，The seas of doom Astrosaurs．[12]，The sun-snatchers Astrosaurs．[5]，The skies of fear Other title:The space ghosts