On this #SpotlightSunday view this #OPG_JOSA_B Spotlight Summary by Jeroen C. J. Koelemeij: Performance and uses of the Refimeve metrological signal, 1000 km from the source https://opg.optica.org/spotlight/summary.cfm?id=581988 #UltrastableLaser #FiberNetworks @cnrs.fr💡 ⚛️