Where is the Bullet Cluster located in the universe?
Quick Answer
It is a system of two colliding galaxy clusters about 3.7 billion light-years away. It lies in the constellation Carina in the southern sky.
The Full Story
The Bullet Cluster is a pair of galaxy clusters that collided and is located about 3.7 billion light-years away in the direction of Carina. It is famous because observations of its visible matter and gravitational lensing show a separation that strongly supports the existence of dark matter. The system was studied with X-ray telescopes and lensing measurements in the early 2000s. It remains one of the best-known pieces of evidence for dark matter in cosmology.
Key Facts
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"A cosmic collision that helped prove dark matter is real."
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