This star orbiting a black hole has a composition that surprises scientists
SMRTR summary
Astronomers discovered that Gaia BH2, a red giant star orbiting a black hole, has a puzzling composition of ancient alpha elements suggesting it formed 10 billion years ago, yet measurements reveal it's only 5 billion years old and rotates unusually fast, completing one rotation every 398 days, leading scientists to theorize it either merged with another star or absorbed matter during the black hole's formation.
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