NASA announced Voyager 1 is at the edge of our solar system and will soon enter interstellar space. The space craft was launched in 1977 and is now moving through the outer layer of our solar system, where the Sun's influence ends and the electrified solar wind slams into the thin expanse of gas between stars.
"Voyager has entered the final lap on its race to the edge of interstellar space, as it begins exploring the solar system's final frontier," said Edward Stone, Voyager project scientist at the California Institute of Technology in Pasadena. Caltech manages NASA's Jet Propulsion Laboratory in Pasadena, which built and operates Voyager 1 and its twin, Voyager 2.
Voyager 1 is now 8.7 billion miles away from the Sun and has finally entered the heliosheath. Read more at Space.com