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Evryscope is an array of automated 6.1-cm telescopes for discovering short optical transients, located at the Cerro Tololo Inter-American Observatory (CTIO), Chile, and Mount Laguna Observatory, New Mexico. Each site has multiple telescopes continuously monitoring more than 1/5 of the celestial sphere, i.e., a 9216 square-degree field of view. The cadence is very short: 2 minutes. The Chile site was deployed in 2015 and the New Mexico site in 2018. The array has recorded transients of variable stars (such as novae), binary-star transits, and has provided rapid-variation observational data and pre-discovery data for transients discovered elsewhere.
A follow-on in development is the Argus Array with larger telescopes and a shorter cadence. A prototype, the Argus Pathfinder aims for a 2025 deployment.