Voyager 1, launched in 1977 to explore the outer planets, has passed into a new region on its way out of the solar system, scientists said on Wednesday. The spacecraft, now more than 11 billion miles away, detected two distinct and related changes in its environment 25 August 2012, astronomers report in the Geophysical Research Letters journal. The probe detected dramatic changes in the levels of two types of radiation, one that stays inside the solar system, the other which comes from interstellar space. Scientists behind the Voyager mission are not yet ready to say Voyager is in interstellar space, however. The probe, which blasted off from Cape Canaveral, Florida, 5 September 1977, may be in a new and previously unknown boundary region between the heliosphere and interstellar space. (Image Credit: NASA)
More Info > (USA Today)
More Info > (NASA JPL Update)