“This is not obviously expected based on our current understanding of cosmology. It’s a bizarre finding.”
It’s a mystery, and it’s going to take a while for technology and theory alike to catch up.
Such projects are already in the planning stages — the SKA for example, and its precursor telescopes, the South African MeerKAT array and the Australian SKA Pathfinder (ASKAP).
“GMRT is one of the largest and most sensitive radio telescope arrays in the world,” said Taylor, “but we really need MeerKAT to make the very sensitive maps, over a very large area and with great detail, that will be necessary to differentiate between possible explanations. It opens up a whole new research area for these instruments. It’s going to be an exciting time to be an astronomer.”