Rubin Observatory Peers Deep Into the Famous COSMOS Field

The Vera C. Rubin Observatory has captured the most detailed view of the COSMOS field, a region of the universe studied for over two decades. The image, produced by the LSST Camera, contains more than half a million galaxies and more than 50,000 individual stars. The Observatory's survey design allows for repeated observations, providing a dynamic view of distant galaxies and the evolution of the universe. The image was released as part of Rubin's Early Data Preview 2 (EDP2), the first phase of the survey data validation. Phil Marshall, Deputy Director of the Rubin Observatory, emphasized the importance of the COSMOS field for LSST science, noting its wealth of prior observations and repeated targeting. The image is a testament to the Observatory's capabilities and will serve as a testing ground for scientists as they prepare for the ten-year survey. The new image was created by stacking hundreds of individual observations made by the 3.2-gigapixel LSST Camera. The Observatory's ability to avoid the crowded plane of the Milky Way ensures that the image is not obscured by the galactic disk and interstellar medium. This allows for sharper views of the cosmos, enabling astronomers to study galaxies and the structure of the universe during different periods of its evolution. The image is dedicated to the people of Coquimbo and is a small token of gratitude for their support of astronomy and the AURA Observatories in Chile.

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