Quante stelle ci sono nell'universo?

Guardi mai in alto nel cielo notturno e chiedentoti : quante stelle ci sono nell'universo? Seguici! https://twitter.com/LifeNoggin https://facebook.com/LifeNoggin https://www.instagram.com/lifenoggin/ Clicca qui per vedere altri video: https://alugha.com/LifeNoggin Life Noggin è una serie educativa settimanale animata. Che si tratti di scienza, cultura pop, storia o arte, esploriamo tutto e ci divertiamo un sacco di cose da fare. Team di Life Noggin: Regista/Voce: http://lifenogg.in/patgraziosi Produttore esecutivo: https://www.youtube.com/IanDokie Direttore Marketing: http://lifenogg.in/JaredOban Animazione di Steven Lawson Head Writer: http://lifenogg.in/KayleeYuhas Fonti: http://curious.astro.cornell.edu/people-and-astronomy/the-history-of-astronomy https://asd.gsfc.nasa.gov/blueshift/index.php/2015/07/22/how-many-stars-in-the-milky-way/ https://www.nasa.gov/feature/goddard/2016/hubble-reveals-observable-universe-contains-10-times-more-galaxies-than-previously-thought https://www.space.com/25303-how-many-galaxies-are-in-the-universe.html https://www.universetoday.com/102630/how-many-stars-are-there-in-the-universe/ http://www.esa.int/Our_Attività/Spazio_Scienza/Herschel/Come_molti_stelle_sono_presenti_nell'Universo https://www.nasa.gov/content/goddard/nasa-satellites-catch-growth-spurt-from-newborn-protostar https://www.universetoday.com/24299/types-of-stars/ https://science.nasa.gov/astrophysics/focus-areas/how-do-stars-form-and-evolve http://www.atnf.csiro.au/outreach/education/senior/cosmicengine/stars_types.html https://lco.global/spacebook/protostar/ https://www.skyandtelescope.com/astronomy-resources/the-spectral-types-of-stars/ http://www.star.ucl.ac.uk/~pac/obafgkmrns.html http://hyperphysics.phy-astr.gsu.edu/hbase/Starlog/staspe.html

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