UCT Astronomer and SKA Postdoctoral Fellow, Dr Roger Deane, is the lead of a team of scientists who have discovered a "black hole trio" in a distant galaxy, as published today in the journal Nature. Not only do their results suggest that these systems are far more common than originally thought, but that future radio telescopes, like MeerKAT and the African VLBI Network, will make direct contributions towards detecting and understanding the gravitational wave signal generated by these systems as they warp the fabric of spacetime. Gravitational waves produce ripples through spacetime, as predicted by Einstein, and have never been directly observed. Observing systems such as the one discovered by Deane and his colleagues holds the promise of uncovering how gravity behaves when stretched to its limits.

For more information see the following articles:
SKA media 
National Geographic 
Science Daily 
Science Mag

and the preprint of the Nature article here:
http://xxx.lanl.gov/abs/1406.6365