Evidence of Dark Matter?

Just found this article on astronomy.com. Apparently, they discovered a quasar, due to gravitational lensing, was split into 4 images with over twice the highest angle between the images.

In the December 18 edition of Nature, the team argues that the quadruple lensing effect at J1004+4112 is caused by the gravitational influence of a cluster of galaxies about 6.2 billion light-years away. They believe that because the visible mass of this cluster cannot account for the observed 14.62-arcsecond separation, high concentrations of intervening material in the form of unseen cold dark matter must be causing this unprecedented wide splitting.

Here's the article:

www.astronomy.com...

From the dark came light...

The dark matter is the substance from which the living was made it is dead.