Results by "Charles Sheffield" in All categories

For millennia, humankind and the other intelligent races have studied the bizarre and unfathomable constructs of the legendary beings known as the Builders. But for all that study, they are still no closer to figuring out who - or what - the Builders have been, or where they have gone.

The search for the Builders, the legendary alien race whose unfathomable constructs continue to perplex scholars and explorers alike, has led Builder expert Darya Lang, adventurer Hans Rebka, and treasure hunters Louis Nenda and Atvar H'sial to an unknown Builder artifact far outside the spiral arm. There they find the Zardalu, once the greatest menace ever known to the worlds of the spiral arm, enslaving entire races and exterminating others, guided by the unswerving belief in their own supremacy.

It was just before Summertide, the time when the twin planets, Opal and Quake, would orbit closest to their sun, subjecting both - Quake in particular - to vast tidal forces. It was to be the most violent Summertide ever, creating something that only happened every 350,000 years. Planetary Administrators Hans Rebka and Max Perry had no choice but to go to Quake - risking their lives to protect the others - and to learn, just maybe, the secret of Summertide and the Builders.

From Nebula Award winner Gregory Benford comes this ambitious hard SF anthology that collects five original novellas. Each one takes the very long view - all are set at least ten thousand years in the future. The authors take a rigorously scientific view of such grand panoramas, confronting the largest issues of cosmology, astronomy, evolution, and biology.

AD 2053. Earth has barely recovered from a supernova that destroyed much of its infrastructure, and now a deadly particle storm is racing toward it. An international effort has been launched out of the Sky City space colony to save the planet, but the plan to build a giant protective shield is falling dangerously behind schedule. A series of murders has disrupted the workforce, so a brilliant but monstrous criminal has been enlisted to track down the killer. Then more startling news arises.

It’s 2026, and catastrophe has struck from an unexpected source. The Alpha Centauri supernova has risen like a second sun, rushing Earth toward its last summer. Floods, fires, starvation, and disease paralyze the planet. In a blue aurora flash of gamma rays, all microchips worldwide are destroyed, leaving an already devastated Earth without communications, transportation, weaponry, or medicine. The disaster sets three groups of survivors on separate quests. A militant cult seizes the opportunity to free their leader, known as the Eye of God, from the long-term coma to which a court sentenced her.