The latest discoveries suggest life beyond planet Earth. Scientists investigate whether Earth's life began elsewhere in the universe, and whether humans need to evolve to know for sure. <br /><br />Thanks for watching. Follow for more videos. <br />#cosmosspacescience <br />#howtheuniverseworks <br />#season7 <br />#epiode8 <br />#alienlife <br />#lifebeyondearth <br />#alienworld <br />#nasa <br />#cosmology <br />#astronomy <br />#spacetime <br />#space <br />#astrophysics <br />#alien <br />
