The Milky Way swallowed a smaller galaxy about 11.8 billion years ago
The Milky Way, a large and spiral-shaped galaxy that is home to hundreds of billions of stars including our sun, has taken a long and complicated path to achieve its current dimensions, as illustrated by new research documenting a milestone event early in its history. Scientists observing clusters of stars congregated near the Milky Way’s centre have discovered evidence that our galaxy swallowed…
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