Titan is a science fiction novel written by Ben Bova as part of the Grand Tour novel series. It directly follows the novel Saturn, in which the space habitat Goddard has finished its two-year journey from Earth, and has settled into the orbit of Saturn. The book won the 2007 John W. Campbell Memorial Award. It was first published in February 2001, by Hodder & Stoughton in the UK and later by Tor Books in the US. Source: Wikipedia (en)