The telescope's longevity is an asset in gaining clarity about the universe's invisible glue.
When theory and observations favor different results, how can astronomers determine which one is more feasible?
Increasing confidence in one theory over another oftentimes requires building a richer dataset to improve current models and lower uncertainties. A team of scientists have done just that to help alleviate the murkiness of a long-standing debate: the cusp-core problem. By analyzing NASA's Hubble Space Telescope data gathered over an almost two-decade span, astronomers have charted stellar movements within a galaxy and discovered the likely clumping of dark matter in its center.
Find additional articles, images, and videos at HubbleSite.org
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