The Voyager 1 & 2 have been in space since its launch 33 years ago. Voyager 1 has been operating continuously for 12,000 days now, traveling 14 billion miles and heading for the Solar Systems boundary! ...hit the link below to see photos the spacecraft has taken
By early 2005, Voyager 1 was about 94 times farther from the Sun than Earth is. Within the next five years, the spacecraft will enter interstellar space, where it will study the boundaries of the solar system, including the Kuiper Belt. Long-life nuclear batteries are expected to power Voyager 1 until at least 2020, when it will be more than 13 billion miles from Earth.
Voyager 2, which completed observations of Uranus and Neptune in addition to Saturn and Jupiter, reached its 12,000-day milestone on June 28. The two space probes are the most distant human-made objects in the universe.....makes the Mars rovers stay of 6 years seem trivial in comparison.