High Energy2026-04-221 minarXiv:2604.20076express18 Years Later: A Supernova Lights Up the RadioA supernova explosion is the death of a massive star, leaving behind a gas cloud. If there's plenty of hydrogen around, the shock wave spreads like an echo from a distant gunshot.F. Acero·R. Z. E. Alsaberi·M. Arias·J. Borowska-Naguszewska·R. Brose·C. Burger-Scheidlin·P. G. Edwards·Q. Feng·M. D. Filipovic·T. Laskar·S. Lazarevic·J. Mackey·A. Nucara·K. Rose·S. Ryder·F. Schüssler·A. Simongini·Z. J. Smeaton·I. Sushch·S. ZhuAdam RiessAlan GuthAlbert Einsteinsupernovasupernova remnantfast radio burstbig bang👍👎☆SimplePopularAdvanced