Superclusters – regions of space 
that are densely packed with galaxies – are the biggest structures in 
the Universe. But scientists have struggled to define exactly where one 
supercluster ends and another begins.
 Now, a team based in Hawaii has 
come up with a new technique that maps the Universe according to the 
flow of galaxies across space. Redrawing the boundaries of the cosmic 
map, they redefine our home supercluster and name it Laniakea, which 
means ‘immeasurable heaven’ in Hawaiian.

