Arp220 (IMAGE) Royal Astronomical Society Caption Astronomers have found evidence of magnetic fields associated with a disc of gas and dust a few hundred light-years across deep inside a system of two merging galaxies known as Arp220 (pictured). Credit NASA, ESA, the Hubble Heritage (STScl/AURA), ESA, Hubble Collaboration, and A. Evans (University of Virginia, Charlottesville/NRAO/Stony Brook University) Usage Restrictions No restrictions. License Public Domain 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.