Molly watched as the sun grew small behind them. She was never going to feel its heat again. She missed it more than she missed her family. 

The AI woke Seth. It said it needed his help, and it kept him busy with little projects for years. When he died, it woke another companion. 

The engine stalled in the deep space between stars. Ships systems failed one by one, but the cold sleep pods kept seeds of humanity alive.