On Cerro Pachon in northern Chile, a camera roughly the size of an SUV snaps a 3.2-gigapixel image every 40 seconds, pivots to a new patch of sky, and fires again, all night, every clear night, for ten years. This episode explores the engineering behind the Vera C. Rubin Observatory and its Legacy Survey of Space and Time, from the project's 2001 origins to full survey operations, and why it turns astronomy from static portraits into a real-time alert system.

We break down the unusual three-mirror anastigmat optical design, why the primary and tertiary mirrors are carved from a single 8.4-meter block of glass, and how that stiffness lets the telescope settle in five seconds after a slew. We follow the data off the mountain across a dedicated fiber network to SLAC in California, where prompt processing compares each new image against templat ...