Radio Jet and Magnetic Field (IMAGE) Instituto de Astrofísica de Canarias (IAC) Caption Novel observations by an international group of researchers with the CanariCam instrument on the Gran Telescopio CANARIAS provide new information about magnetic fields around the active nucleus of the galaxy Cygnus A. This is the first time that polarimetric observations in the middle infrared region of the spectrum have been made of the nucleus of an active galaxy. Credit NRAO. Usage Restrictions Documents and materials on the IAC website are copyright of the Instituto de Astrofísica de Canarias. Use for commercial and publicity purposes is not authorised. Text and images may only be reproduced with the prior express permission of the Science Communication and Education Unit of the Instituto de Astrofísica de Canarias. To request permission: Include the address of the image (or information about it) in a request addressed to the Head of the Communication and Scientific Culture Unit (secUC3@iac.es) explaining what the image will be used for. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.