I liked Titan A.E.'s take on that. An alien race (the Drej) attack and destroy the Earth and the Moon, while simultaneously attacking evacuation shuttles. Most

I liked Titan A.E.'s take on that. An alien race (the Drej) attack and destroy the Earth and the Moon, while simultaneously attacking evacuation shuttles. Most of humanity is wiped out in mere minutes. No silver lining. No happy ending at this stage. What's left of humanity is slowly dying in drifter colonies scattered around the galaxy. It takes a miracle, the Titan project, for humanity to be given a new hope again.