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Gravitational lensing may point to lighter dark matter candidate - Enlarge / The red arcs at the right of center are background galaxies d... - https://arstechnica.com/?p=1933677 #particlephysics #darkmatter #astronomy #cosmology #science #axions #wimps
Ars TechnicaNo WIMPS! Heavy particles don’t explain gravitational lensing odditiesDetailed look at a lensed galaxy favors lighter particles called axions.