AdvertisementSee Ya, Voyager: Probe Has Finally Entered Interstellar SpacePlay03:58Download AudioSeptember 12, 2013Richard HarrisfacebookEmailThis artist's illustration shows the Voyager 1 space probe. The spacecraft was launched on Sept. 5, 1977, and as of August 2012, it is outside the bubble of hot gas, known as the "heliopause," that radiates from the sun. (NASA/Landov)
