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Hidden Dwarf Galaxy Loki
May 20 , 2026
15 hrs 0 min
17
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- Scientists proposed the existence of a hidden ancient dwarf galaxy named “Loki” inside the Milky Way.
- A dwarf galaxy is a small galaxy with fewer stars and lower mass than large galaxies like the Milky Way.
- Scientists studied 20 old metal-poor stars located within 2 kiloparsecs of the Sun using spectroscopy techniques.
- The stars showed both prograde and retrograde motion, which means they move both with and against the Milky Way’s rotation.
- The study used ESPaDOnS, a high-resolution spectropolarimeter, to examine chemical elements formed from supernovae and neutron star mergers.
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