Tech

With relief, researchers find an explanation for dark-matter-poor galaxies

Enlarge / The slightly hazy, light patch in the middle of the image is the DF2 galaxy, so diffuse that other galaxies are clearly visible behind it. (credit: NASA, ESA, and P. van Dokkum) The first evidence for dark matter were galaxies that behaved as if they had far more matter than could be accounted […]