High Energy2026-08-082 minarXiv:2608.08243expressRadio Beacons with a Minute-Long Rhythm: Who Lights Them UpA lighthouse that blinks not every second but once every few minutes or even hours. That is exactly how long-period radio transients behave — cosmic sources discovered only recently.Yuanhong Qu·Bing ZhangAlan GuthAlbert EinsteinCharles Townespulsarfast radio burstbrown dwarfred dwarf👍👎☆SimplePopularAdvanced