A Repeating Cosmic Radio Burst Turned Out to Have a Sun-Like Companion Star
July 14, 2026FRB 220529A is a repeating fast radio burst flashing from 2.5 billion light-years away. After 17 months of watching with China's giant FAST telescope, researchers caught a moment when the radio wave's 'twist' spiked a hundredfold -- evidence, they believe, of a solar storm from a companion star. SORABUMI explains.