Discoveries of new planets have revealed countless worlds much stranger than Earth; some of these strange worlds don't have stars and others are made out of diamonds. <br /><br />Thanks for watching. Follow for more videos. <br />#cosmosspacescience <br />#howtheuniverseworks <br />#season5 <br />#episode9 <br />#alienworlds <br />#alien <br />#starngestalienworlds <br />#cosmology <br />#astronomy <br />#spacetime <br />#spacescience <br />#habitablezone <br />#habitableplanet <br />
