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Shares AI has identified more than 1,2o0 new possible gravitational lenses, which could help unravel the mysteries of dark matter. The lenses are formed when a vast amount of matter â like a cluster of galaxies â bends the direction of light traveling from more distant galaxies. The lenses then typically appear as arcs and streaks. These images can help scientists infer the existence of dark matter â which the naked eye canât see â by observing its gravitational effects on the visible matter. Unfortunately, theyâre seriously hard to spot. âOnly when a galaxy is hidden directly behind a giant galaxy is a lens possible to see,â said Xiaosheng Huang from the University of San Francisco, the study lead author. âWhen we started this project in 2018, there were only about 300 confirmed strong lenses.â ....
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. ....