"What began as fervent protests by the Vatican against IVF—the church sees it as a sin, partly because it takes place outside conjugation—has evolved into a more complex debate as the procedure has become commonplace. These days, supermarket tabloids herald the latest in a growing string of celebrity IVF babies. Now, the 30-plus-year history of fertilizing human eggs in a 'test tube' (actually a petri dish) can help inform debate about emerging technologies such as cloning, longevity advancements, artificial life-forms, and even 'designer babies.'"