Hidden Loki Dwarf Galaxy Reveals the Milky Way's Ancient Growth

1 min read
Source: Yahoo News New Zealand
Hidden Loki Dwarf Galaxy Reveals the Milky Way's Ancient Growth
Photo: Yahoo News New Zealand
TL;DR

Astronomers analyzing metal-poor stars in the Milky Way’s plane have found chemical fingerprints suggesting a long-vanished dwarf galaxy, dubbed Loki, was absorbed by the Milky Way billions of years ago; Loki’s stars orbit both prograde and retrograde, indicating a chaotic early accretion and a relic of our galaxy’s growth.

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