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Article: A clash of clusters provides another clue to dark matter.
- Article from:
- NewsRx Health & Science
- Article date:
- September 28, 2008
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A powerful collision of galaxy clusters has been captured with NASA's Chandra X-ray Observatory and Hubble Space Telescope. Like its famous cousin, the so-called Bullet Cluster, this clash of clusters provides striking evidence for dark matter and insight into its properties.
Like the Bullet Cluster, this newly studied cluster, officially known as MACSJ0025.4-1222, shows a clear separation between dark and ordinary matter. This helps answer a crucial question about whether dark matter interacts with itself in ways other than via gravitational forces.
This finding is important because it independently verifies the results found for the Bullet Cluster in ...