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Rubin Observatory Begins 10-Year Legacy Survey of Space and Time

The nightly program will generate huge public data, rapid alerts, large samples of moving objects, transforming studies of dark matter, transient events, the solar system.

Overview

  • The Vera C. Rubin Observatory officially started the Legacy Survey of Space and Time, which began June 30, 2026, launching a decade of continuous imaging of the southern sky.
  • Rubin’s 8.4-meter Simonyi Survey Telescope uses a 3,200-megapixel camera to take a new image about every 40 seconds and will revisit the survey footprint roughly 800 times over ten years.
  • The observatory will produce about 10 terabytes of data per night and up to roughly 7 million automated alerts nightly, sending real-time notices when objects move, brighten, dim, or otherwise change.
  • Early operations already yielded fast science: in its first six weeks Rubin cataloged more than 11,000 previously unknown asteroids, including dozens of near-Earth objects and hundreds of trans‑Neptunian bodies.
  • All survey data and alerts will be publicly available, creating an open dataset of trillions of measurements that will enable global follow-up efforts but also require new tools and coordination to manage the data and prioritize transient and solar‑system targets.