Rubin Observatory Unveils Stunning View of 650,000 Galaxies

WHO:

Phys.org - Vera C. Rubin Observatory is involved in the release of the new image.

Gizmodo - The observatory is overseen by the U.S. National Science Foundation (NSF) and the Department of Energy (DOE).

WHAT:

Phys.org - The observatory released its first LSST Camera image and catalog for science.

Gizmodo - The new image reveals more than 650,000 galaxies and over 50,000 stars in a single view.

Gizmodo - The COSMOS field contains over 2 million galaxies.

Gizmodo - The Rubin Observatory's Legacy Survey of Space and Time (LSST) will generate a wide-field snapshot of the southern sky every few nights.

WHERE:

Gizmodo - The COSMOS field is located in the constellation Sextans.

Gizmodo - COSMOS covers an area of the sky that is around three times the size of the full Moon.

WHEN:

Gizmodo - The Rubin Observatory released its first images to the public on June 23, 2025.

Gizmodo - The LSST is a decade-long cosmic survey.

WHY:

Gizmodo - The COSMOS field is a prime spot for space telescopes to carry out sky surveys because it faces away from the crowded plane of the Milky Way.

HOW:

Gizmodo - Rubin used its 3.2-gigapixel camera to capture the image.

Gizmodo - The recent image of COSMOS was combined using multiple observations.

Gizmodo - The LSST combines immense field of view with depth and speed to detect extremely faint objects.

(UPDATED August 4, 2026 00:10 UTC)

The Vera C. Rubin Observatory has released its first LSST Camera image, showcasing over 650,000 galaxies and more than 50,000 stars in a single view of the COSMOS field, which is located in the constellation Sextans and spans an area three times the size of the full Moon. This groundbreaking image was captured using a 3.2-gigapixel camera and combines multiple observations, allowing the Legacy Survey of Space and Time to generate wide-field snapshots of the southern sky every few nights. The COSMOS field is an ideal location for such surveys, as it faces away from the crowded plane of the Milky Way, making it easier to detect extremely faint objects.