"In Ben Bova's previous novel New Earth, Jordan Kell led the first human mission beyond the solar system. They discovered the ruins of an ancient alien civilization. But one alien AI survived, and it revealed to Jordan Kell that an explosion in the black hole at the heart of the Milky Way galaxy has created a wave of deadly radiation, expanding out from the core toward Earth. Unless the human race acts to save itself, all life on Earth will be wiped...

"Eight light years away, a star has died, creating a supernova event that showers Earth in deadly levels of radiation. Within a year, everyone over the age of thirteen will die. And so the countdown begins. Parents apprentice their children and try to pass on the knowledge needed to keep the world running. But when the world is theirs, the last generation may not want to continue the legacy left to them. And in shaping the future however they want,...

In 1963, in a Siberian prison, former nuclear specialist Valery Kolkhanov has mastered what it takes to survive: the right connections to the guards for access to food and cigarettes, the right pair of warm boots, and the right attitude toward the small pleasures of life so he won't go insane. But one day, all that changes: Valery's university mentor steps in and sweeps him from the frozen camp to a mysterious unnamed city. It houses a set of nuclear...