Trapped on a deadly world Ten days ago, Mission Specialist Daisy Blish and her fellow astronauts become the first people to set foot on Saturn's frozen moon Titan.Familiar and yet utterly strange, this world- with an average temperature of negative 290 F- is the solar system's cryogenic parody of Earth. The air, devoid of oxygen, is filled instead with a soup of toxic chemicals that permanently obscure the sun. The surface is shaped by streams of...