Dark matter plays a huge role in the Pomroy’s World series so I am always interested in new developments.
A international team of scientists analyzed seventy two collisions between galaxy clusters in an attempt to explore the nature of dark matter. The original paper can be found here: The nongravitational interactions of dark matter in colliding galaxy clusters
The evidence for the existence of dark matter is piling up but there are still some unanswered questions:
1) Can dark matter be detected directly?
2) What is dark matter made up of? Is it a WIMP, MACHO, axion, SUSY particles, WIMPzilla, or something else we can’t imagine.
My favorite candidate for a dark matter particle is a Majorana fermion.
The mystery of dark matter is going to be fertile ground for speculation for many years to come.
For more information check out the following links: