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Rubin Stacked a Deeper Window on COSMOS
The observatory's second early data preview combines hundreds of looks at a famous field containing more than half a million galaxies.
Summary
The observatory's second early data preview combines hundreds of looks at a famous field containing more than half a million galaxies.
The NSF-DOE Vera C. Rubin Observatory released a deeply stacked image of the COSMOS field made from hundreds of observations. The field contains more than 500,000 galaxies and over 50,000 Milky Way stars. The wider Early Data Preview 2 validation campaign, gathered from April 2025 through January 2026, covers about 3,000 square degrees; it is an early science product, not the full ten-year survey.
Why it matters
The observatory's second early data preview combines hundreds of looks at a famous field containing more than half a million galaxies.
Limits and context
- The wider Early Data Preview 2 validation campaign, gathered from April 2025 through January 2026, covers about 3,000 square degrees; it is an early science product, not the full ten-year survey.
Key claims
The observatory's second early data preview combines hundreds of looks at a famous field containing more than half a million galaxies.
Qualification: The wider Early Data Preview 2 validation campaign, gathered from April 2025 through January 2026, covers about 3,000 square degrees; it is an early science product, not the full ten-year survey.
Evidence: source-2026-08-01-003
Sources
- NSF-DOE Vera C. Rubin Observatory via Newswise: COSMOS deep windowNSF-DOE Vera C. Rubin Observatory via Newswise · secondary reporting
Corrections
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