Using its 3.2-gigapixel camera, Rubin observed a region of the sky known as the COSMOS field to reveal more than 650,000 galaxies and over 50,000 stars packed in a single view. Familiar groundsThe COSMOS field contains over 2 million galaxies that span across 75% of the age of the universe, with some as far as 12 billion light-years away. The Hubble and Webb space telescopes have been used to capture large mosaics of COSMOS, and now Rubin is joining the party. The telescope captured a wide variety of galaxies, including spirals with delicate arms, smooth ellipticals, distorted merging galaxies, and faint red galaxies from the distant Universe. In fact, the COSMOS field is among the regions that Rubin will observe more frequently, compared to most of the areas included in its 10-year survey of the universe.