Star Kiss
The contaminated Earth is left hundreds of years ago, far behind, but the human civilization continues in deep space. They live, love, explore, research, cultivate gardens inside their space stations, give birth to new children, and of course they create art and entertain each other far more than they did back on their home planet.
Although the numbers were cut from billions down to mere thousands, those thousands have truly rediscovered what it means to be a human being. All alone in deep space, inside their tiny space stations they have finally found the deeper meaning of a human life.