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Astrophysicist Priyamvada Natarajan says Roman telescope could map dark matter
Set to launch next year, NASA’s Roman telescope may transform dark matter research by detecting thousands of gravitational lensing events.
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Pranavi Sharma - Mon, 16, Jun 2025
- 00:08 EDT
- 20
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Priyamvada Natarajan / Yale
Indian-origin astrophysicist Priyamvada Natarajan of Yale University has said that NASA’s upcoming Nancy Grace Roman Space Telescope could significantly improve the study of dark matter through its ability to detect thousands of gravitational lenses. She shared her views in a new study published in The Astrophysical Journal, and in comments to Yale News.
The Roman telescope, expected to launch next year, will enhance the detection of gravitational lenses — galaxies that bend light from more distant galaxies behind them, acting like cosmic magnifying glasses. “These findings underscore the significant potential of Roman in advancing strong lensing studies and enhancing our understanding of dark matter substructure through high-resolution observations,” said Natarajan, the Joseph S. and Sophia S. Fruton professor and chair of Astronomy and professor of physics in Yale’s Faculty of Arts and Sciences.
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