Striking new evidence for mass immigration of stars into the Andromeda galaxy

Striking new evidence for mass immigration of stars into the Andromeda galaxy
Galaxies grow and evolve by forging new stars and merging with other galaxies through aptly named "galactic immigration" events. The archaeology of such events, uncovered by studying the motions of individual stars throughout a galaxy and its…

Published April 18, 2023 at 07:25AM
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