“SKAO Lead researcher Alec Thomson said his team found magnetic fields and determined their strength by measuring twists in the light detected by ASKAP.”
“SKAO Lead researcher Alec Thomson said his team found magnetic fields and determined their strength by measuring twists in the light detected by ASKAP.”
This article on The Conversation contains some further interesting details: https://theconversation.com/see-a-new-map-of-the-universes-magnetic-fields-the-largest-and-most-detailed-ever-made-284157