Cosmic Whispers: Weighing Dark Matter with Dwarf Galaxies

From galaxy rotations to gravitational lensing, dark matter leaves its fingerprints in gravity alone. In this episode, we zoom in on ultra-faint dwarf galaxies orbiting the Milky Way—tiny, dark-matter–dominated laboratories that help us pin down dark matter’s mass. We’ll explore the idea that ultra-light, wave-like dark matter could create fuzzy cores, and how precise stellar motions in Leo II are used to set bounds on the particle mass—without heavy assumptions. Join us for a data-driven journey through one of the universe’s most intriguing mysteries and how these diminutive galaxies are reshaping our understanding of the dark sector.

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