Assertion: voyager | /r/HasProperty | reached interstellar medium
Facets:
value: in august
type: TEMPORAL
Source sentences:
text: On September 12, 2013, NASA officially confirmed that Voyager 1 had reached the interstellar medium in August 2012 as previously observed, with a generally accepted date of August 25, 2012 (approximately 10 days before the 35th anniversary of its launch), the date durable changes in the density of energetic particles were first detected.