Assertion: pulsar | /r/HasProperty | discovered the fast time scale of pulses
Facets:
value: in the 1960s
type: TEMPORAL
Source sentences:
text: When pulsars were first discovered, the fast time scale of pulses (about 1 s, uncommon to astronomy in the 1960s) was half-seriously considered to be caused by extraterrestrial intelligence, later jokingly referred to as LGM-1, for "Little Green Men.