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What is an Equinox? | National Geographic

What are equinoxes? What causes these astronomical events? Find out how they influence the seasons and hours of daylight on each planet. âž¡ Subscribe: http://bit.ly/NatGeoSubscribe 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 What is an Equinox? | National Geographic https://youtu.be/enlih8M5DN0 National Geographic https://www.youtube.com/natgeo
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