Voyager 1 (the farthest man-made object) left earth 35 years ago. Its current speed is 22km/s (80.000km/h). It takes 16 hours to send a message from Voyager to earth, and in the meantime, it will travel 1 million kilometers.
Voyager 1 is apparently entering a zone where the Sun doesn't have much influence anymore. "humanity's first emissary to interstellar space is on the edge of our solar system".
Soon, the interstellar space!