Countless stars dot the night sky. Learn how these celestial objects form, how they are classified by brightness and temperature, and what happens when they die. ➡ Subscribe: http://bit.ly/NatGeoSubscribe #NationalGeographic #Stars #Educational About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: http://bit.ly/NatGeoOfficialSite Facebook: http://bit.ly/FBNatGeo Twitter: http://bit.ly/NatGeoTwitter Instagram: http://bit.ly/NatGeoInsta Read more in "Everything you wanted to know about stars" https://on.natgeo.com/2W3Zov1 Stars 101 | National Geographic https://www.youtube.com/watch?v=EFO_bsg1sw8 National Geographic null