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| Name | What Did The First Stars Look Like? |
| Video Uploader | Video From Seeker+ |
| Upload Date | This Video Uploaded At 28-09-2016 14:00:02 |
| Video Discription | Episode 2 of 3 Check us out on Soundcloud! https://soundcloud.com/dnewsplus Please Subscribe! http://bit.ly/28iQhYC Discovery GO - http://smart.link/57ae195b47796 Science GO - http://smart.link/57ae1a34dd168 Early estimations of the size of early stars has been ongoing, but how big were early stars? And why were they so much bigger than today's? + + + + + + + + Previous Episode: How The Heck Does Gravity Make Stars?!: https://www.youtube.com/watch?v=X06Tk_DvEPM + + + + + + + + How the First Stars Were Born: http://www.space.com/5685-stars-born.html "A new supercomputer simulation offers the most detailed view yet of how the first stars evolved after the Big Bang." First Stars in Universe Weren't Giants, Astronomers Say: http://www.space.com/13572-early-stars-universe-massive.html "The first stars that were forged in our early universe were not nearly as massive as once thought, according to the results of a new study." WHAT WERE THE FIRST STARS?: http://www.universetoday.com/24776/what-were-the-first-stars/ "Astronomers now know that the Big Bang occurred 13.7 billion years ago. For the first few hundred million years, the entire Universe was too hot any stars to form. But then the Universe cooled down to the point that gravity could start pulling together the raw hydrogen and helium into the first ever stars." Main Sequence Stars: Definition & Life Cycle: http://www.space.com/22437-main-sequence-stars.html "Main sequence stars fuse hydrogen atoms to form helium atoms in their cores. About 90 percent of the stars in the universe, including the sun, are main sequence stars." Populations I and II: https://www.britannica.com/topic/Population-I "Populations I and II, in astronomy, two broad classes of stars and stellar assemblages defined in the early 1950s by the German-born astronomer Walter Baade. The members of these stellar populations differ from each other in various ways, most notably in age, chemical composition, and location within galactic systems." Population III: http://astronomy.swin.edu.au/cosmos/P/Population+III "Stars observed in galaxies were originally divided into two populations by Walter Baade in the 1940s. Although a more refined means of classifying stellar populations has since been established (according to whether they are found in the thin disk, thick disk, halo or bulge of the galaxy), astronomers have continued to coarsely classify stars as either Population I (Pop I, metal-rich) or Population II (Pop II, metal-poor)." IF BROWN ISN'T A COLOR, WHAT COLOR ARE BROWN DWARFS?: http://www.universetoday.com/23247/if-brown-isnt-a-color-what-color-are-brown-dwarfs/ "We've talked about brown dwarfs here on Universe Today for years and years. These are the "failed stars"; objects with too little mass to fully ignite nuclear fusion in their cores." Brown Dwarfs: http://coolcosmos.ipac.caltech.edu/cosmic_classroom/cosmic_reference/brown_dwarfs.html "Brown dwarfs are objects which are too large to be called planets and too small to be stars. They have masses that range between twice the mass of Jupiter and the lower mass limit for nuclear reactions (0.08 times the mass of our sun)." + + + + + + + + DNews Plus is built for enthusiastic science fans seeking out comprehensive conversations on the geeky topics they love. Host Trace Dominguez digs beyond the usual scope to deliver details, developments and opinions on advanced topics like AI, string theory and Mars exploration. DNews Plus is also offered as an audio podcast on Soundcloud. + + + + + + + + Trace Dominguez on Twitter https://twitter.com/TraceDominguez DNews on Facebook https://facebook.com/discoverynews DNews on Twitter http://twitter.com/DNews + + + + + + + + |
| Category | Science & Technology |
| Tags | stars | night | nuclear fusion | hydrogen | helium | space | galaxy | molecular clouds | Gravity | supernova | big bang | Star classification | dwarfs | supergiants | Absorption lines | emission lines | spectral lines | gas clouds | #notallstars | Kinetic Energy | universe | gas law | thermal energy | gravitational contraction | Population III | Population II | Population 1 | brown dwarf | trace dominguez | Science | humor | Funny | dnews | dnews plus | science podcast | dnews podcast | seeker |
