Voyager 1 & 2
" The Voyagers have been flying in space for 45 years, including a tape recorder and less memory than an average smartphone On September 5, 1977, exactly 45 years ago, the Voyager 1 space probe was launched, 16 days after its sister probe Voyager 2. The two space probes are NASA's longest-running mission and the only spacecraft to have explored and are still exploring interstellar space. And despite their respectable age and associated problems, the two probes are still transmitting useful scientific data to Earth. "
