Tau zero
Garden City, 1970
Abstract
A scientific expedition equipped with a Bussard ramjet undergoes a catastrophic collision with a nebula, damaging its deceleration systems and preventing a planned landfall. Due to the relativistic speeds involved, the crew is forced to maintain continuous acceleration to preserve the integrity of their electromagnetic shielding against interstellar matter. This persistent acceleration induces extreme time dilation, causing the internal passage of months to correspond with billions of years in the external universe. As the crew navigates the thermal and structural stresses of an aging cosmos, they witness the eventual cessation of stellar formation and the onset of a universal contraction. By utilizing the increased matter density of a collapsing universe to achieve a near-zero tau factor, the vessel survives the transition through a cosmological singularity into a subsequent expansion phase. In this newly formed universe, the crew identifies a viable terrestrial planet and successfully executes a landing, establishing a biological and cultural foundation for the human species in a nascent galactic cycle. The work emphasizes the physical constraints of relativity, the mechanics of ramjet propulsion, and the psychological endurance required to survive trans-temporal isolation. – AI-generated abstract.
