The Karl G. Jansky Very Large Array radio telescope consists of 27 giant telescope dishes (each 25 meters in diameter) in New Mexico. Up to now, this violent and extreme process had only been directly observed once, in a black hole binary system. Dr Jakob van den Eijnden. Dr Jakob van den Eijnden, from the University of Oxford’s Department of Physics, lead the analysis of the data from the Karl G. Jansky Very Large Array. Dr van den Eijnden added: ‘This discovery, only the second example of these instabilities, also highlights the rarity of this behaviour.