According to game blog Joystiq, the space levels of universe simulator Spore will take between 15 and 20 hours to complete and has an ending, a definite change from previous Maxis open-universe games. That's right, no matter what kind of society you build, your trip to the center of the Universe will end in one way. Hopefully not a title screen reading "The princess is in another castle."
Spore comes out on September 7th for the PC, Mac and iPhone.
Joystiq: 'Spore' Space Phase Details