An international team of radio astronomers has used data from NSF’s Karl G. Jansky Very Large Array (VLA) to generate a detailed map of the magnetic field of NGC 4217, a Milky Way-like spiral galaxy located about 60 million light-years away in the constellation of Canes Venatici. This composite image shows the edge-on spiral galaxy NGC 4217. Magnetic field lines (green), revealed by the VLA, extend far above and below the plane of the galaxy. Image...