Assertion: black hole | /r/HasProperty | discovered
Facets:
value: from the way
type: OTHER
value: normally
type: DEGREE
value: way back in the 1960s
type: TEMPORAL
Source sentences:
text: The very first black hole ever discovered named Cygnus X-1 was discovered way back in the 1960s, but it wasn’t actually identified as a black hole for at least another decade.
text: Normally, black holes are discovered from the way they interact violently with an accreting disc of gas and dust.