Dark matter update

colliding galaxies

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:

Colliding galaxy clusters offer strongest case yet for dark matter

Exploring the monstrous creatures at the edges of the dark matter map

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