All eleven year old Alex Petroski wants is to launch his golden iPod into space. With a series of audio recordings, he'll show other life-forms what life on Earth-his earth is really like. But for a boy with a long-dead dad, a troubled mom, and a mostly not-around brother, Alex struggles with the big questions: where do i come from?, who's out there? and above all, how can i be brave? Determ…