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Dwarf galaxy’s gamma-rays hint at dark matter

11 March 2015 Astronomy Now

An excess of gamma rays detected coming from a recently discovered dwarf galaxy named Reticulum 2, which is 98,000 light years from Earth, could provide researchers with clues about dark matter, which is the mysterious stuff that makes up most of the Universe.

Milky Way’s dark-matter-dominated companion galaxy found

9 February 2015 Astronomy Now

Analysis of near-infrared data from the European Southern Observatory’s VISTA telescope provides evidence for a dark-matter-dominated dwarf galaxy 300,000 light-years away predicted to exist in 2009.