They are now the only two operational spacecraft in interstellar space, beyond the sun’s influence.
In 1979, Voyager 2 passed Jupiter, Saturn in 1981, Uranus in 1985, and Neptune in 1989. It is the only spacecraft to have visited Uranus or Neptune, and it has contributed most of the data that we now use to characterize them. Voyager 1 overtook Voyager 2 just a few months after launch due to its faster speed and more direct course. It made a stop at Jupiter in 1979 and Saturn in 1980. In 1998, it surpassed Pioneer 10, the only other spacecraft in interstellar space at the time and is now the farthest distant artificial object from Earth.
The Voyager space probes have been traversing the solar system for more than 4 decades, and are now in uncharted deep space, farther than any spacecraft has gone from our planet. Through this journey, the probes have provided valuable data that have led to numerous breakthroughs over the years, but now it seems that the voyager has been sending signals that have our scientists baffled.