Good to see that the old chap hadn't lost his sense of humor:

In an interview with The Associated Press, Clarke once said he did not regret having never followed his novels into space, adding that he had arranged to have DNA from strands of his hair sent into orbit."One day, some super civilization may encounter this relic from the vanished species and I may exist in another time," he said. "Move over, Stephen King."

Source: Wired News - AP News