interstellarspace

NASA’s Voyager 2 probe has entered interstellar space
NASA's Voyager 2 spacecraft has exited the heliosphere -- the plasma bubble created by the sun that encompasses most of our solar system -- and entered interstellar space, making it the second human-made object to do so. Voyager 1 hit this milestone in 2012. NASA said Voyager 2 crossed over the heliopause, the boundary between the heliosphere and interstellar space, on November 5th and the probe is now more than 11 billion miles from Earth.
Voyager 2 probe may be on the edge of interstellar space
NASA's Voyager 2 probe may be close to joining its sibling and entering interstellar space. The vessel has been detecting a five percent increase in cosmic rays since late August, suggesting that it's close to crossing the heliopause (the edge of the solar wind bubble, aka the heliosphere) and entering the interstellar realm. Voyager 1 saw similar increases in May 2012, so its fellow spacecraft may be in for a repeat.