Astronomers have identified Loki, a ghost galaxy completely absorbed by the Milky Way billions of years ago, by mapping thousands of stars moving against our galaxy's rotation; these rogue stars, scattered across 50,000 light-years with chemistry inconsistent with our galaxy's history, reveal that the Milky Way grew not just through natural formation but through consuming other galaxies, with some of Loki's remains even located in the spiral arm closest to Earth.
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Loki: Ghost Galaxy Hidden in Our StarsAdded:
The Milky Way is a cannibal. Astronomers just identified the bones. A galaxy called Loki swallowed billions of years ago, only now named from the wreckage.
In 2024, they mapped [music] thousands of stars moving the wrong direction.
Against the full rotation of our galaxy, stars don't do that unless they weren't born here.
Every rogue star traced [music] back to the same source.
Loki, a smaller galaxy absorbed so completely >> [music] >> it ceased to exist. No boundary, no shape, just bones scattered across 50,000 light-years.
The chemistry inside those stars doesn't match our galaxy's history. Scientists can't explain [music] where Loki formed originally. Officially, absorption.
The data suggests it came from somewhere we haven't reached.
Some of Loki's remains are in the spiral arm closest to Earth, not the outer edge. Here.
Parts [music] of the galaxy we call home were never ours to begin with.
The Milky Way didn't grow to this size, it fed.
And we live inside [music] the evidence.
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