AI Insight
The COSMOS field, located in the constellation Sextans, is a extensively studied region of deep space that was photographed by the Hubble Space Telescope between 2003 and 2005. The Rubin Observatory has now observed this same famous field, which was originally imaged in segments by Hubble's Advanced Camera for Surveys and combined with data from ground-based and space-based telescopes to study cosmic evolution. This represents a continuation of astronomical surveys of one of the most well-documented areas of the observable universe.
Why it matters
Repeated observations of the COSMOS field by different instruments like the Rubin Observatory allow astronomers to detect changes over time and compare observational capabilities across different telescope systems. These overlapping surveys of the same region enable more comprehensive studies of galaxy formation, evolution, and the large-scale structure of the universe.
Understand the Science
The COSMOS field, or Cosmic Evolution Survey Deep Field, is one of the most famous patches of the universe observed by astronomers. Located in the constellation Sextans, this region was photographed by the Hubble Space Telescope (HST) in segments from 2003 to 2005 using its Advanced Camera for Surveys (ACS). With support from ground-based and other space-based telescopes, the resulting images were then stitched together to create a stunning picture of cosmic evolution.
Source: Rubin observatory peers deep into the famous COSMOS field