The Flight of the Aphrodite by S.J. Morden

I had a great time with this novel, it is good to read hard science fiction from time to time. The Flight of the Aphrodite is a more than correct novel about discovery, although the author focuses as much or more on the characters and especially on the problems of a prolonged space travel. I have a question about the plausibility of the argument but I don't know whether to discuss it with an author who is both a rocket scientist and a planetary geologist. Please, more novels like this one!