Astronomers stumped about those needy galaxies clinging to Andromeda1/5/2013
While we wait for Andromeda and the Milky Way to have their epic collision (and it won't be for 4.5 billion years, so you have time for a beer run), astronomers have their telecopes fogged over a new development. It seems that 13 dwarf galaxies have formed a ring around Andromeda and orbit our next-door galaxy. This has star-gazers baffled, as it doesn't fit with models they've constructed. Of course, the Milky Way has several orbiting dwarfs itself, so maybe this is just some sort of keeping up with the intergalactic Joneses. [Source]
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