The first close-up images of Pluto reveal unimaginable secrets. Scientists investigate if Pluto is home to a warm ocean of liquid water beneath its surface and whether this underground ocean could harbour life. <br /><br />Thanks for watching. Follow for more videos. <br />#cosmosspacescience <br />#scienceofspace <br />#howtheuniverseworks <br />#season5 <br />#episode4 <br />#pluto <br />#secrethistoryofpluto <br />#historyofpluto <br />#charon <br /><br />
