Abell 223
Abell 223 is a galaxy cluster. It's located at a distance of 2.4 billion light-years from Earth. The cluster is connected to nearby cluster Abell 222 by a filament of matter. Research has shown that only 20% of that matter is normal. The rest is thought to be dark matter. [1]
See also
References
- ↑ Pete Spotts (5 July 2012). "Cosmic scaffolding uncovered? Scientists find thread of dark matter.". The Christian Science Monitor. Christian Science Publishing Society. Retrieved 14 July 2012.
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