Voyager 1, launched in 1977, is humanity's most distant spacecraft at 15 billion miles from Earth, operating on just 69 kilobytes of memory and an 8-track tape recorder. Originally designed for a 5-year mission to study Jupiter and Saturn, it became the first human-made object to enter interstellar space in 2012 and continues transmitting unique scientific data back to Earth at 160 bits per second, despite being nearly 50 years old.