The Sun is expected to run out of hydrogen fuel in 5 billion years! Afterwards, it is expected to tap into helium as a fuel source. Freeman narrates that at that point, the Sun will expand, "it will swallow Mercury." <br />Christopher McKay proposes migrating to the planet Mars if the Earth gets too hot. Freeman narrates,"Mars will survive even after the Earth is burned to a crisp." Perfluorocarbons or PFCs will need to be used to terraform Mars. <br />After the Sun burns helium for 2 billion years, it collapses into a white dwarf star. <br />National Ignition Facility (NIF) is the world's most energetic laser. <br />Freeman explains that Shawn Westmoreland has proposed "tethering a tiny black hole to a spaceship" to propel the spaceship in order to allow inter-stellar travel. <br />At the time of this documentary, the hottest temperature can be reached inside the LHC in Switzerland; the temperature of smashing particles at the LHC can get a 100,000 times hotter than the center of the Sun. <br /><br />Thanks for watching. Follow for more videos. <br />#cosmosspacescience <br />#throughthewormhole <br />#season4 <br />#episode3 <br />#cosmology <br />#astronomy <br />#spacetime <br />#spacescience <br />#space <br />#nasa <br />#morganfreeman <br />#spacedocumentary <br />#deathofsun <br />#deathofsolarsystem <br />
