Voyager 1 has reached the boundary of the solar system, marking a significant milestone as it travels into uncharted space, approximately 8.4 billion miles from Earth. While it is not sending back images, it is transmitting valuable data. The spacecraft is still considered to be within the solar system if defined to include the Oort Cloud, despite being far beyond the orbit of Pluto. There is ongoing discussion about whether Voyager has crossed the heliopause, with some radio signals suggesting proximity to this boundary. The Voyager program is recognized as a major success in space exploration.