Time means very little in deep space. Mission Specialist Sullivan, a divorced astronaut and mother, is aboard the Aether, on its return flight from Jupiter. They are the first human beings to delve this deep into space and it has changed the crew. At last Sully feels at peace with the sacrifices she has made – the daughter she’s left behind, the marriage she couldn’t save. But suddenly, inexplicably, the Aether loses all contact with Mission Control.