One approach, pioneered by astrophysicist Anthony Tyson at Bell Labs in the 1990s, crudely located dark matter by the way its gravity distorted the light of visible galaxies. (discovermagazine.com)
It does not explain the perplexing phenomenon of dark energy, which is accelerating the expansion of the universe, nor does it account for dark matter, the invisible material that outweighs visible galaxies five to one. (discovermagazine.com)
So far, the DES analysis backs this up: The maps show large filaments of matter along which visible galaxies and galaxy clusters lie and cosmic voids where very few galaxies reside. (sciencedaily.com)