Earth

In Ben Bova's science fiction novel Earth, humanity faces an impending threat as a lethal gamma radiation wave from the Milky Way's core approaches, set to reach Earth in 2,000 years. With assistance from the advanced Predecessors who provided protective technology, humans have thrived across the solar system, creating a seemingly idyllic existence. However, underlying tensions arise from a policy of exiling disaffected young people to outer planets, leading to a deepening schism that threatens to ignite into conflict.