"Unveiling the Largest-Ever Magnetic Field Map of Space: 'El Gordo' Galaxy Cluster"

Researchers have created the largest map of a galaxy cluster's magnetic field, focusing on the El Gordo cluster located 7 billion light-years from Earth. The map, spanning 6 million light-years across, is the first of its kind and could provide insights into cosmic rays and the formation and evolution of galaxy clusters. The researchers used measurements of conductive fluids and computer simulations to outline the invisible magnetic field lines, potentially shedding light on the universe's largest structures.