The Vera C. Rubin Observatory has officially launched its 10-year Legacy Survey of Space and Time (LSST), initiating a decade-long census of the southern sky. Situated on Cerro Pachón in Chile, the facility now captures hundreds of images nightly using a 3,200-megapixel camera, the largest digital sensor ever constructed. This transition from commissioning to full operations enables the creation of an ultra-high-definition time-lapse record of the universe, mapping billions of stars in the Milky Way and countless galaxies beyond. The survey targets dark matter, dark energy, solar system inventory, and transient optical phenomena, generating approximately 10 terabytes of data each night. With the baseline strategy confirmed as of 29 June 2026, operators will revisit every southern sky sector roughly 800 times over the decade.