Dwarf Galaxies May Hold the Answers to the Debate on Dark Matter

A new study reveals that the gravitational field of dwarf galaxies cannot be explained by their visible matter alone, thus reinforces the theory of Dark Matter. Credit: ESO/ DSS2 (D. De Martin)/DES (S.E. Koposov)/AIP (M.P. Júlio)

An international team of researchers, led by the Leibniz Institute for Astrophysics Potsdam (AIP), has shed light on a decades-long debate about why galaxies rotate faster than expected, and whether this behaviour is caused by unseen dark matter or a breakdown of gravity on cosmic scales.

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