From the mission that saw Pluto for the first time to the Mars rovers, a new breed of explorers are risking their careers, and even their lives, to lead humanity to worlds we have never seen and tackle the mysteries of life itself. <br /> Thanks for watching Follow for more videos. <br />#cosmosspacescience <br />#spacedeepestsecrets <br />#season1 <br />#episode1 <br />#cosmology <br />#astronomy <br />#spacetime <br />#spacescience <br />#space <br />#nasa <br />#spacedocumentary <br />#pluto <br />
