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New Siena Galaxy Atlas delivers improved measurements of almost 400,000 nearby galaxies

Washington DC (SPX) Oct 19, 2023 - Astronomers have created a detailed atlas of almost 400,000 galaxies in our cosmic neighborhood. The Siena Galaxy Atlas was compiled using data from NSF s NOIRLab telescopes, and is designed to be t

Fossil Dwarf Galaxy Beneath Andromeda Could Hint at the Early Structure of the Universe

Doubling the Number of Known Gravitational Lenses

Doubling the Number of Known Gravitational Lenses Machine learning key to discovery of over 1200 gravitational lenses CosmoView Episode 19: Doubling the Number of Known Gravitational Lenses KPNO/CTIO/NOIRLab/NSF/AURA/Legacy Imaging Survey Gravitational lenses found in the DESI Legacy Survey data. Examples of gravitational lenses found in the DESI Legacy Survey data. KPNO/CTIO/NOIRLab/NSF/AURA/Legacy Imaging Survey Gravitational lens found in the DESI Legacy Survey data. An example of a gravitational lens found in the DESI Legacy Surveys data. The nearly complete circle in the middle of DESI-015.6763-14.0150 is the image of a background galaxy, gravitationally warped (lensed) by the red galaxy at the center into a near-perfect Einstein ring.

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