Helen E Slater
In their search to discover the presence of microbial life, NASA sends unmanned probes to two of Saturn's moons: Enceladus and Titan. When the rover on Titan loses contact shortly after making an astounding discovery, the world is in shock.
Desperate for answers, the world's space agencies work together to send a manned crew on a billion mile journey across the Solar System. But what will they discover when they arrive?