Voyager 1 reaches solar system's final frontier
"NASA's Voyager 1 has reached the final frontier of our solar system, having traveled through a turbulent place where electrically charged particles from the Sun crash into thin gas from interstellar space.
"Astronomers tracking the little spaceship's 26-year journey from Earth believe Voyager 1 has gone through a region known as termination shock, some 8.7 billion miles from the Sun, and entered an area called the heliosheath"
