Assertion: astronomer | /r/CapableOf | try to identify the source of interference
Facets:
value: in a radio antenna
type: LOCATION
value: in the 1960s
type: TEMPORAL
Source sentences:
text: Astronomers trying to identify the source of interference in a radio antenna in the 1960s discovered the Cosmic Microwave Background Radiation, the afterglow of the Big Bang.