November 02, 2026

Rubin Observatory's giant camera reveals half a million galaxies

Scientists say the image is just the start of a decade-long survey of the southern sky

Rubin Observatory's giant camera reveals half a million galaxies
This deep-space image captured by the NSF–DOE Vera C Rubin Observatory reveals the renowned COSMOS field in the constellation Sextans, showcasing over half a million distant galaxies alongside a small foreground of Milky Way stars.

News Desk

bdnews24.com

Published : 03 Aug 2026, 11:59 PM

Updated : 08 Sep 2026, 09:29 AM

The Vera C Rubin Observatory has unveiled a striking new image showing more than 500,000 galaxies and 50,000 stars, produced by its 3,200MP LSST camera -- the largest digital camera built to date.

The device sits on the observatory's 8.4m Simonyi Survey Telescope in Chile.

Roughly the size of a small car and weighing close to 2,993.71kg, it assembled the picture from hundreds of separate exposures gathered across several months. 

Combining so many shots let researchers sharpen faint, far-off light and pull out fine cosmic detail.

The observation zeroed in on the COSMOS field, a thoroughly mapped patch of sky that sits away from the Milky Way's dense core, giving astronomers an especially clean line of sight into deep space. 

The resulting picture shows an array of cosmic forms -- spiral galaxies, rounded ellipticals, galaxies caught mid-merger, and old red galaxies whose light has travelled for billions of years before reaching us.

Bob Blum, who directs the Rubin Observatory for NSF NOIRLab, said this deep image is only a first step for the site, noting that returning to the same field repeatedly in coming years will hand researchers large numbers of short-lived or shifting objects -- supernovae among them -- for closer study.

Phil Marshall, the observatory's deputy director at SLAC, said the field's long observational history and its use during commissioning make it a strong benchmark as the team moves into full-scale survey work.

The picture is an early product of Rubin's flagship, decade-long Legacy Survey of Space and Time, under which the camera will keep sweeping the southern sky, charting billions of objects and flagging cosmic events as they change.

Blum also dedicated the image to residents of Chile's Coquimbo region, recently battered by severe storms, in recognition of the region's long-standing support for astronomy and the AURA observatories there.

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