Evidence of ancient Milky Way merger
DOI: 10.1038/d41586-018-07193-4
Bibcode: 2018Natur.563...43V
Venn, Kim
Abstract
An analysis of data from the Gaia space observatory suggests that stars in the inner halo of the Milky Way originated in another galaxy. This galaxy is thought to have collided with the Milky Way about ten billion years ago.
2018
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Nature
Gaia
1