Fast Radio Bursts (FRBs) are one of the biggest astronomical mysteries of the last decade. First observed in 2007, astronomers have detected over two dozen instances of the powerful but fleeting signals from space. Researchers don't know exactly what they are, but there have been plenty of proposals including alien messages (of course), signals from collapsing black holes or neutron stars, and energy from a phenomenon known as cosmic strings. But as Hannah Devlin at The Guardian reports, new observations are getting us closer to the answer. The latest results suggest that the signals are emitted from areas with super-strong magnetic fields.