"We have previously had two well-established types of magnetism," study author Oliver Amin, a postdoctoral researcher at the University of Nottingham in the U.K., told Live Science ...

This is the final episode of 5 Live Science in this feed, but you can still hear Dr Chris Smith regularly on BBC Radio 5 Live with Naga Munchetty on a Tuesday afternoon at 1pm. You can also search ...