A cohort is a group of people who share a common characteristic or experience within a defined period (e.g., are currently living, are exposed to a drug or vaccine or pollutant, or undergo a certain medical procedure).
A rift valley is a lowland region formed by the interaction of Earth's tectonic plates. This small rift valley has a typical formationâlong, narrow, and deep. It was formed by the Thingvellir rift, where the North American and Eurasian tectonic plates are tearing, or rifting, apart over a hotspot on the island of Iceland.
From the cold war of the Islands Cluster to the isolation of the Boulderfield, the Great Rift is a place of varied and insidious danger. A miscalculated jump means a slow death in deep space â yet Travellers are willing to take the risk. What awaits the intrepid voyager who finds an undiscovered star system or deep-space object?