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...

https://www.engadget.com/2018/12/10/...stellar-space/