http://www.newscientist.com/article/mg20327246.000-13-more-things-dark-flow.html
So a recent finding by Sasha Kashlinsky at NASA's Goddard Space Flight Center in Greenbelt, Maryland, does not make sense. His team has found a group of galaxy clusters moving at an extraordinary speed towards a small patch of sky between the constellations of Centaurus and Vela. Kashlinsky calls it the "dark flow", in tribute to those other cosmic mysteries dark matter and dark energy (New Scientist, 24 January, p 50).
... One of the foundation stones of cosmology is the Copernican principle, which says that there is nothing special about our region of the universe.... There are also suggestions that the pull might be from another universe altogether. That would be good news for proponents of eternal inflation theory, which suggests that the universe should actually be composed of "mini-universes" that have bubbled off from one another.
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From the series:
13 things that do not make sense
and
13 more things that do not make sense
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