Curious cosmic choreography: Small galaxies locked in a strange dance around large galaxies
Wednesday, January 2, 2013 - 15:30
in Astronomy & Space
(Phys.org)—A newly discovered form of circle dancing is perplexing astronomers; not due to its complex choreography, but because it's unclear why the dancers – dwarf galaxies – are dancing in a ring around the much larger Andromeda Galaxy.