The New Frontier - S02:E06 - Emissaries

Our solar system is vast, from our own star the Sun to Earth is nearly 150 million kilometers or 1 Astronomical Unit. Jupiter is 5.2 AU distant and Pluto up to 48AU, the solar system extends far beyond this into interstellar space. We humans cannot yet travel that sort of distance, however w e can and do send our robots and probes in our place; and the results are astounding.