Invisible hand in invisible matter

Description

An international team of astronomers have found an unexpected link between mysterious 'dark matter' and the visible stars and gas in galaxies that could revolutionise our current understanding of gravity.

One of the astronomers, Dr Hongsheng Zhao of the SUPA Centre of Gravity, University of St Andrews, suggests that an unknown force is acting on dark matter.  The findings are published this week in the scientific journal Nature.