James Webb Telescope Uncovers Dark Matter Anomaly in Ancient Galaxy
A recent study using the James Webb Space Telescope reveals unexpected high dark matter density in an ancient galaxy, challenging existing astronomical models.
- The James Webb Space Telescope discovered an ancient galaxy, JWST-ER1g, exhibiting a unique Einstein ring, indicating strong gravitational lensing.
- Researchers found the dark matter density within the galaxy's Einstein ring to be much higher than anticipated, suggesting new insights into dark matter properties.
- The anomaly was identified through calculations subtracting stellar mass from the total mass within the Einstein ring.
- The findings could lead to a better understanding of dark matter's role in galaxy formation and evolution.
- The study, supported by the John Templeton Foundation and the U.S. Department of Energy, was published in The Astrophysical Journal Letters.
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