FRB 20250613A, caught in a dwarf galaxy at z=0.0987, surprised us: its dispersion varied 50 times within minutes. The bursts repeat with a rhythm of 6.8 ms, as if a neutron star is spinning. And most strikingly, the brighter the pulse, the cleaner the ether: the radio wave accelerates oncoming elect
arXiv:2607.00505v1 · 2026-07-01