NASA - Hubble Finds Ghostly Ring of Hubble Finds Ghostly Ring of Dark Matter
http://www.nasa.gov/mission_pages/hubble/news/dark_matter_ring_feature.html
credit:nasatv
mapping the distribution of dark matter within the galaxy cluster Cl 0024+17 (ZwCl 0024+1652), located 5 billion light-years from Earth. The ring measures 2.6 million light-years across.
they need to think of better names for clusters lol
woddaheck 3 years ago