[ExI] dark matter clumps

[Damien Broderick]

<using NASA's Hubble Space Telescope, an 
international team of astronomers simultaneously 
mapped the invisible dark matter "scaffolding" of 
the galaxy supercluster Abell 901/902 in addition 
to the positions of hundreds of individual galaxies contained within.
...
The resulting map – presented last week in Texas 
at the annual meeting of the American 
Astronomical Society – is the highest resolution 
picture of dark matter created to date, and 
supports the idea that dark matter plays an 
important role in determining the positions and 
structures of galaxies in the universe.>

http://www.cosmosmagazine.com/node/1785