Our contest to complete the story Roger started about the Thinking Molecules of Titan is officially closed. Thank you to all who submitted such great entries. We are reading through the entries and preparing some surprises for you. The surprises will have to await our review process. But as we roll out the voting procedure and introduce your submissions to our millions of readers on the site, we want you to know how much we appreciate your participating in a process that Roger would have found a delight! We hope to post the first entries by next week, and will alert you to the exact date.