Assertion: supernova | /r/CapableOf | explode at least 100 light-years
Facets:
value: from earth
type: LOCATION
Source sentences:
text: Based on the concentration of Fe-60 in the crust, Knie estimated that the supernova exploded at least 100 light-years from Earth—three times the distance at which it could’ve obliterated the ozone layer—but close enough to potentially alter cloud formation, and thus, climate.