Uranus and Neptune are mysterious, icy worlds at the edge of the solar system; new discoveries reveal that these strange planets may have helped start life on Earth. <br /><br />Thanks for watching. Follow for more videos. <br />#cosmosspacescience <br />#howtheuniverseworks <br />#season6 <br />#episode5 <br />#uranus <br />#neptune <br />#riseoftheicegiants <br />#icegiants <br />#cosmology <br />#astronomy <br />#spacetime <br />#oursolarsystem <br />#iceworlds <br />#nasa <br />#spacescience <br />
